The pilot of the helicopter which crashed in Vauxhall had requested to divert and land at Battersea due to bad weather, London Heliport said.

The helicopter crashed into a road in central London, hitting a crane on top of a central London tower block that was shrouded in fog early on Wednesday morning.

London Heliport in Battersea is less than two miles from Vauxhall.

vauxhall

Dense black smoke loomed over the morning commute

Two people died in the crash, with emergency services naming the commercial pilot and someone on the ground as the fatalities.

burning car

The wreckage of a car can be seen in Vauxhall

It is believed the helicopter was not carrying passengers and it is not yet clear what the intended destination for the aircraft was.

Police said the helicopter was on a scheduled flight from Redhill, Surrey, to Elstree, Hertfordshire.

emergency services

Emergency services at the scene after a helicopter collided with a crane attached to St George's Wharf Tower

A spokesman for Elstree Studios posted on Facebook that they were not the intended destination, but added:. "Our thoughts are with everyone affected".

The helicopter exploded into flames, just streets away from the MI6 building and Vauxhall station and the site for the new US embassy.

vauxhall

Fog shrouded the top of the tower block

Dense black smoke was billowing from the area, close to the river Thames after the helicopter spiralled to the ground in what eyewitnesses described as "a massive ball of flame".

One person has been critically injured while a number of others have less serious injuries.

london helicopter crash

A helicopter has crashed into a road in Vauxhall

A spokeswoman for London Ambulance Service said: "We have treated six patients, five for minor injuries and one patient for a broken leg. Four of the patients were taken to St Thomas' Hospital and two - a man and a woman - were taken to King's College Hospital.

Firefighters have now doused the blaze but earlier this morning flaming wreckage and aviation fuel covered the road as witnesses reported seeing cars on fire and hearing people screaming.

The crane at the St George's Wharf development is still "in a precarious position", London Fire Brigade said.

helicopter crash

An Agusta 109 helicopter, the type involved in Wednesday's crash

Investigations have begun as to why the Agusta 109 helicopter collided with the crane.

SEE ALSO: Vauxhaull Helicopter crash pictures

There are strict rules governing helicopter flights in the capital and the Air Accidents Investigation Branch (AAIB) team will want to know if proper procedures were followed.

Civil aviation expert Chris Yates, believes the weather on Wednesday morning could well have been a factor behind the incident.

He told the Huffington Post UK: "Fog is a particular issue. The question running round my mind at the moment is whether the fog appeared quite rapidly and caught the pilot unawares.

"It may well have disorientated the pilot and hence the reason why he apparently flew into this crane at the top of the building.

A spokesman for Berkeley Group, which owns St George, the development company for the building, said in a statement:

"We can confirm a helicopter collided with a crane at St George Wharf at 8am this morning. Our thoughts at this time are with the friends and families of those killed in this tragic incident.

"Emergency services are on the scene and authorities are investigating the circumstances. We are offering our full support and assistance to the emergency services."

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  • Pete Barnes, the pilot who died after his helicopter crashed in Vauxhall, London was one of the country's most experienced pilots, having flown choppers in Hollywood movies and ferried politicians and celebrities around the UK. Pete Barnes, 50, worked fo

    Pete Barnes, the pilot who died after his helicopter crashed in Vauxhall, London was one of the country's most experienced pilots, having flown choppers in Hollywood movies and ferried politicians and celebrities around the UK. Pete Barnes, 50, worked for "boutique" helicopter company Rotormotion and died after trying to divert the aircraft due to bad weather.

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    Debris and a burned out car are pictured at the scene of a helicopter crash in central London, on January 16, 2013. Two people were killed when a helicopter hit a crane at a building site in central London and plunged to the ground on Wednesday, police said. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

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    Debris (R) is pictured beside a fire fighting vehicle at the scene of a helicopter crash in central London, on January 16, 2013. Two people were killed when a helicopter hit a crane at a building site in central London and plunged to the ground on Wednesday, police said. AFP PHOTO / CARL COURT (Photo credit should read CARL COURT/AFP/Getty Images)

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    Debris and a burntout car are pictured at the scene of a helicopter crash in central London, on January 16, 2013. Two people were killed when a helicopter hit a crane at a building site in central London and plunged to the ground on Wednesday, police said. AFP PHOTO / CARL COURT (Photo credit should read CARL COURT/AFP/Getty Images)

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    LONDON, ENGLAND - JANUARY 16: Emergency services at the scene after a helicopter reportedly collided with a crane attached to St Georges Wharf Tower in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane before plunging into the road below during the morning rush hour. (Photo by Oli Scarff/Getty Images)

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    Debris and a burned out car are pictured at the scene of a helicopter crash in central London, on January 16, 2013. Two people were killed when a helicopter hit a crane at a building site in central London and plunged to the ground on Wednesday, police said. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

  • BRITAIN-AVIATION-ACCIDENT

    Members of the emergency services prepare a stretcher as they attend to the scene of a helicopter crash in London, on January 16, 2013. Two people were killed when a helicopter hit a crane at a building site in central London and plunged to the ground on Wednesday, police said. AFP PHOTO / CARL COURT (Photo credit should read CARL COURT/AFP/Getty Images)

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    The scene after a helicopter crashed into a construction crane on top of St George's Wharf tower building, in Vauxhall south London.

  • BRITAIN-AVIATION-ACCIDENT

    Debris and a burned out car are pictured at the scene of a helicopter in central London, on January 16, 2013. Two people were killed when a helicopter hit a crane at a building site in central London and plunged to the ground on Wednesday, police said. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

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    The scene after a helicopter crashed into a construction crane on top of St George's Wharf tower building, in Vauxhall south London.

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    Police close off the junction of Parry Street and Wandsworth Road, after a helicopter crashed into the Crane on top of St George's Wharf tower building, in heavy freezing mist in Vauxhall south London.

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    Helicopter Crashes in Central London Credit Victor Jimenez

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  • Helicopter crash in London

    A general view of the scene shortly after a helicopter crashed in the Vauxhall area of central London, after hitting a crane on top of a tower block by the River Thames, according to eye witness reports, Wednesday Jan. 16, 2013. (AP Photo / Toby Scott, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • (Credit: YouTube/niczerogoeshome)

  • (Credit: YouTube/niczerogoeshome)

  • LondonFire London Fire Brigade 12m Pic from the scene of the #helicopter crash in #vauxhall. We were called at 8am and we put the fire out within 20mins.

    LondonFire London Fire Brigade 12m Pic from the scene of the #helicopter crash in #vauxhall. We were called at 8am and we put the fire out within 20mins.

  • Helicopter Crashes in Central London Credit Victor Jimenez

    Helicopter Crashes in Central London Credit Victor Jimenez

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    LONDON, UNITED KINGDOM - JANUARY 16: Emergency services at the scene after a helicopter reportedly collided with a crane attached to St Georges Wharf Tower in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane before plunging into the road below during the morning rush hour. (Photo by Dan Kitwood/Getty Images)

  • (Credit: Twitter/sevitz)

  • (Credit: Twitter/Louisp55)

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  • Helicopter Crashes in Central London Credit Victor Jimenez

    Helicopter Crashes in Central London Credit Victor Jimenez

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  • Helicopter Crashes in Central London Credit Victor Jimenez

    Helicopter Crashes in Central London Credit Victor Jimenez

  • At the scene of the crash on Corner of miles st and Wandsworth road #vauxhall #helicoptercrash

    Jessica Elgot @jessicaelgot At the scene of the crash on Corner of miles st and Wandsworth road #vauxhall #helicoptercrash pic.twitter.com/6d1nCCJe

  • Helicopter Crashes in Central London Credit Victor Jimenez

    Helicopter Crashes in Central London Credit Victor Jimenez

  • Helicopter Crashes in Central London Credit Victor Jimenez

    Helicopter Crashes in Central London Credit Victor Jimenez

  • Helicopter Crashes in Central London Credit Victor Jimenez

    Helicopter Crashes in Central London Credit Victor Jimenez

  • Helicopter Crashes in Vauxhall, South London

    LONDON, UNITED KINGDOM - JANUARY 16: Emergency services at the scene after a helicopter reportedly collided with a crane attached to St Georges Wharf Tower in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane before plunging into the road below during the morning rush hour. (Photo by Dan Kitwood/Getty Images)

  • Helicopter Crashes in Vauxhall, South London

    LONDON, UNITED KINGDOM - JANUARY 16: Emergency services at the scene after a helicopter reportedly collided with a crane attached to St Georges Wharf Tower in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane before plunging into the road below during the morning rush hour. (Photo by Dan Kitwood/Getty Images)

  • Helicopter Crashes in Vauxhall, South London

    LONDON, UNITED KINGDOM - JANUARY 16: Emergency services at the scene after a helicopter reportedly collided with a crane attached to St Georges Wharf Tower in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane before plunging into the road below during the morning rush hour. (Photo by Dan Kitwood/Getty Images)

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    A group of firefighters examine the scene from an extendable ladder high above Wandsworth Road, after a helicopter crashed into the crane on top of St George's Wharf tower building, in Vauxhall south London.

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    A section of the Crane lays in Nine Elms Lane, after crashing to the ground close to St George's Wharf tower building, where a Helicopter crashed into this morning, in Vauxhall south London.

  • Helicopter Crashes in Vauxhall, South London

    LONDON, UNITED KINGDOM - JANUARY 16: Emergency services at the scene after a helicopter reportedly collided with a crane attached to St Georges Wharf Tower in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane before plunging into the road below during the morning rush hour. (Photo by Dan Kitwood/Getty Images)

  • Helicopter crash in London

    A section of the Crane lays in Nine Elms Lane, after crashing to the ground close to St George's Wharf tower building, where a Helicopter crashed into this morning, in Vauxhall south London.

  • Helicopter crash in London

    Emergency services at the scene of a helicopter crash in central London.

  • Helicopter crash in London

    A section of the crane lays in Nine Elms Lane, after crashing to the ground close to St George's Wharf tower building, where a helicopter crashed into this morning, in Vauxhall south London.

  • Helicopter crash in London

    Police close off the junction of Parry Street and Wandsworth Road, after a helicopter crashed into the Crane on top of St George's Wharf tower building, in heavy freezing mist in Vauxhall south London.

  • Helicopter Crashes in Vauxhall, South London

    LONDON, UNITED KINGDOM - JANUARY 16: Fog surrounds a damaged crane attached to St Georges Wharf Tower after a helicopter reportedly collided with it, in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane before plunging into the road below during the morning rush hour. (Photo by Dan Kitwood/Getty Images)

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    A general view of the damaged crane on top of St Georges Tower close to the scene where a helicopter crashed in central London.

  • Helicopter crash in London

    A general view of the damaged crane on top of St Georges Tower close to the scene where a helicopter crashed in central London.

  • Helicopter crash in London

    A general view of the damaged crane on top of St Georges Tower close to the scene where a helicopter crashed in central London.

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    Emergency services at the scene of a helicopter crash in central London.

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    Police close off the Vauxhall Cross intersection, after a Helicopter crashed into a construction Crane on top of St George's Wharf tower building, in Vauxhall south London.

  • Helicopter crash in London

    Police close off the Vauxhall Cross intersection, after a Helicopter crashed into a construction Crane on top of St George's Wharf tower building, in Vauxhall south London.

  • Helicopter crash in London

    A small part of the emergency services on the scene at Vauxhall Cross intersection, after a Helicopter crashed into a construction Crane on top of St George's Wharf tower building, in Vauxhall south London.

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    LONDON, UNITED KINGDOM - JANUARY 16: A police officer stands outside a residential bliock near to the scene where a helicopter crashed in Vauxhall, on January 16, 2013 in London, England. According to reports, the helicopter hit the crane attached to St Georges Wharf Tower before plunging into the road below during the morning rush hour. Two people died and nine casualties have been confirmed with one in a critical condition. (Photo by Dan Kitwood/Getty Images)

  • Helicopter crash in London

    A section of the crane (top left) lays in Nine Elms Lane, after crashing to the ground close to St George's Wharf tower building, where a Helicopter crashed into this morning, in Vauxhall south London.