A major police operation sprang into action following an emergency call from Tulisa Contostavlos' home amid fears she was at risk of being kidnapped, it has been reported.

Police raced to the Hertfordshire mansion of the former 'X Factor' judge after two men were seen acting suspiciously outside.

tulisa

Tulisa

The men were apprehended after four squad cars and a dog unit arrived at the £6million property on Wednesday night, according to The Sun.

Both suspects were questioned but police confirmed no crime had been committed.

A search of the grounds and the house was also carried out before officers gave the all-clear.

A Hertfordshire Police spokesperson told The Sun: “We were called at 10.23pm to reports of suspicious behaviour of two men in a vehicle outside a property.

“Both men were spoken to. As a precaution, we also searched the area. We were satisfied no crimes had occurred.”

In June, former Coronation Street star Helen Flanagan was left "very shaken" but unharmed after raiders broke into the mansion she shared with her ex, footballer Scott Sinclair.

The actress, who also appeared in 'I'm A Celebrity ... Get Me Out Of Here!' last year, was at home when the intruders raided the mansion in Cheshire.

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  • The X Factor Press Launch - London

    Tulisa Contostavlos arriving for the X Factor Press Launch, at CineWorld, O2 Arena, Greenwich, London.

  • Hard Rock Pinktober Women Of Rock Concert - London

    Tulisa of N-Dubz performing on stage during the Hard Rock PINKTOBER Women Of Rock concert, at the Royal Albert Hall in west London.

  • O2 Wireless Festival - London

    N-Dubz member Tula "Tulisa" Contostavlos performing on the Main Stage at the Wireless Festival in Hyde Park, central London.

  • Capital FM's Jingle Bell Ball - Day One - Press Room - London

    Tulisa of N-Dubz in the press room of Capital FM's Jingle Bell Ball at the O2 Arena in London.

  • N-Dubz on T4

    Tulisa of N-Dubz performs during a recording for Channel 4's T4 programme, at Princess Productions in west London.

  • BRIT Awards 2010 - Arrivals - London

    Tula "Tulisa" Contostavlos from N-Dubz arriving for the BRIT Awards 2010, at Earls Court, London.

  • Soccer - Celebrity Soccer Six football tournament - The Valley

    Tulisa from N Dubz team celebrates with the trophy after her team won the Women's Soccer Six tournament

  • Isle of Wight Festival 2010

    Tulisa of N Dubz performing on the Big Top Stage, at the Isle of Wight Festival, at Seaclose Park in Newport.

  • T4 On The Beach 2010 - Somerset

    Tulisa Contostavlos of N Dubz performs live at T4 On The Beach 2010, at Weston Super Mare in Somerset.

  • Orange RockCorps concert - London

    Tula Contostavlos aka Tulisa of N-Dubz backstage at the Orange RockCorps concert at the Royal Albert Hall, west London.

  • Mobo Awards 2010 - Liverpool

    Tula 'Tulisa' Contostavlos of N-Dubz arriving for the 2010 Mobo Awards, at the Echo Arena, Monarchs Quay, Albert Dock, Liverpool.

  • Variety Club Showbiz Awards 2010 - London

    Tulisa Constotavlos of N-Dubz arrives for The Co-operative Variety Club Showbiz Awards 2010 at The Grosvenor House Hotel, Park Lane, London.

  • N-Dubz in concert - Nottingham

    Tulisa of N-Dubz performs on stage at the Royal Concert Hall in Nottingham.

  • The X Factor Auditions - Birmingham

    New X Factor judge Tulisa Contostavlos of N-Dubz arrives for the first auditions at the LG Arena, Birmingham.

  • Mobo Awards 2010 - Liverpool

    Tula 'Tulisa' Contostavlos of N-Dubz arriving for the 2010 Mobo Awards, at the Echo Arena, Monarchs Quay, Albert Dock, Liverpool.

  • X Factor auditions - Glasgow

    Judge Tulisa Contostavlos arrives at the SECC in Glasgow, Scotland ahead of the X Factor auditions in the city.

  • X Factor Auditions - London

    Tulisa Contostavlos arrives at the X Factor London Auditions 2011, The O2 Arena, London.

  • T in the Park - Scotland

    Tula "Tulisa" Contostavlos of N-Dubz performs at the T in the Park music festival at Balado.

  • T4 on The Beach - Weston-super-Mare

    N-Dubz singer Tulisa Contostavlos performs at T4 on The Beach in Weston-super-Mare, Somerset.

  • X Factor auditions - Liverpool

    X Factor judge Tulisa Contostavlos arrives at the Echo Arena in Liverpool, where the latest round of auditions for the show are taking place.

  • Glamour Women of the Year Awards 2011 - London

    Tulisa Contostavlos arriving at the 2011 Glamour Women of the Year Awards in Berkeley Square, London.

  • Channel 4 Comedy Gala photocall - London

    Tulisa, from N-Dubz, arrives at the Channel 4 Comedy Gala at the O2 in London.

  • The X Factor Press Launch - London

    Tulisa Contostavlos arriving at the press launch and screening of the first episode of X Factor 2011, CineWorld, O2 Arena, Greenwich, London.

  • N-Dubz Christmas Party - London

    Tulisa Contostavlos of N-Dubz performs live at the Shepherds Bush Empire in west London, as part of the N-Dubz Christmas Party.

  • N-Dubz Christmas Party - London

    Tulisa Contostavlos of N-Dubz performs live at the Shepherds Bush Empire in west London, as part of the N-Dubz Christmas Party.

  • N-Dubz Christmas Party - London

    Mr Hudson performs live on stage with N-Dubz at the Shepherds Bush Empire in west London, as part of the N-Dubz Christmas Party.

  • Capital FM's Jingle Bell Ball - Day One - Show - London

    N-Dubz on stage at the Capital FM's Jingle Bell Ball at the O2 Arena in London.

  • Capital FM's Jingle Bell Ball - Day One - Show - London

    N-Dubz on stage at the Capital FM's Jingle Bell Ball at the O2 Arena in London.

  • V Festival 2011 - Chelmsford

    Tulisa Contostavlos of N Dubz performing on day two of the V festival in Chelmsford, Essex.

  • Mobo Awards 2010 - Liverpool

    Tula 'Tulisa' Contostavlos of N-Dubz performs on stage during the 2010 Mobo Awards, at the Echo Arena, Monarchs Quay, Albert Dock, Liverpool.

  • V Festival 2011 - Chelmsford

    Tulisa Contostavlos performing at the V festival in Chelmsford, Essex.

  • V Festival 2011 - Chelmsford

    Tulisa from N-Dubz performs on the 4 Music Stage at the V Festival in Chelmsford.

  • Vogue's Fashion's Night Out - London

    Tulisa Contostavlos arriving for Vogue's Fashion's Night Out Party, at Asprey on New Bond Street, central London.

  • Pride of Britain Awards - London

    Tulisa Contostavlos arriving for the Pride of Britain awards at the Grosvenor House Hotel, London.

  • Tulisa Contostavlos perfume launch - London

    Tulisa Contostavlos launches her new fragrance 'The Female Boss' at the The Perfume Shop, Oxford Street London.

  • The Twilight Saga: Breaking Dawn: Part One UK Premiere - London

    Tulisa Contostavlos arriving for the UK premiere of The Twilight Saga: Breaking Dawn Part 1, at the Westfield Stratford City, Stratford, London.

  • X Factor Auditions - London

    Tulisa Contostavlos arrives at the X Factor London Auditions 2011, The O2 Arena, London.

  • The X Factor Press Launch - London

    Tulisa Contostavlos arriving at the press launch and screening of the first episode of X Factor 2011, CineWorld, O2 Arena, Greenwich, London.

  • The Twilight Saga: Breaking Dawn: Part One UK Premiere - London

    Tulisa Contostavlos arriving for the UK premiere of The Twilight Saga: Breaking Dawn Part 1, at the Westfield Stratford City, Stratford, London.

  • X Factor auditions - Liverpool

    X Factor judge Tulisa Contostavlos arrives at the Echo Arena in Liverpool, where the latest round of auditions for the show are taking place.

  • Cosmopolitan Ultimate Women Awards - London

    Tulisa Contostavlos arriving for the Cosmopolitan Ultimate Women Awards at Banqueting House, Whitehall, London.

  • Cosmopolitan Ultimate Women Awards - London

    Tulisa Contostavlos arriving for the Cosmopolitan Ultimate Women Awards at Banqueting House, Whitehall, London.

  • The Twilight Saga: Breaking Dawn: Part One UK Premiere - London

    Tulisa Contostavlos arriving for the UK premiere of The Twilight Saga: Breaking Dawn Part 1, at the Westfield Stratford City, Stratford, London.

  • The Twilight Saga: Breaking Dawn: Part One UK Premiere - London

    Tulisa Contostavlos arriving for the UK premiere of The Twilight Saga: Breaking Dawn Part 1, at the Westfield Stratford City, Stratford, London.

  • The X Factor

    Tulisa Contostavlos leaves after an X Factor press conference at LWT studios in London.

  • The Twilight Saga: Breaking Dawn: Part One UK Premiere - London

    Tulisa Contostavlos arriving for the UK premiere of The Twilight Saga: Breaking Dawn Part 1, at the Westfield Stratford City, Stratford, London.

  • National Television Awards 2012 - Arrivals - London

    Tulisa Contostavlos arriving for the 2012 NTA Awards at the O2, Greenwich, London

  • National Television Awards 2012 - Arrivals - London

    Tulisa Contostavlos arriving for the 2012 NTA Awards at the O2, Greenwich, London

  • The X Factor Press Launch - London

    Tulisa Contostavlos arriving for the X Factor Press Launch, at CineWorld, O2 Arena, Greenwich, London.

  • Pride of Britain Awards - London

    Tulisa Contostavlos arriving for the Pride of Britain awards at the Grosvenor House Hotel, London.

  • FHM 100 Sexiest Women In The World 2012 launch party - London

    Tulisa Contostavlos attends a party to celebrate FHM's annual poll of the 100 Sexiest Women in the World at Proud Bank

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