The RAF Bomber Command Memorial in London's Green Park has been targeted by vandals for the second time in a week.

The graffiti read 'LEE RIGBY KILLERS SHUD HANG'.

Police were called to the area at around 4:40am on Wednesday morning when they found the vandalism.

bomber command memorial vandalism

The scene of the vandalism

The incident is now being investigated by detectives from Westminster CID and Royal Parks officers.

The RAF Benevolent Fund (RAFBV) who maintain the service's memorials said in a statement they were "extremely saddened" by the attack.

They added: "The RAFBV exists to provide welfare for past and present RAF personnel and their dependants who are in need; this latest attack will once again divert much needed resources away from our primary purpose."

bomber command graffiti

The police and this unidentified man revealed what had been written

Last week the word "Islam" was sprayed onto the memorial in the aftermath of the killing of Drummer Lee Rigby in Woolwich.

bomber command memorial

The memorial is a tribute to the 55,573 Bomber Command crew who lost their lives during the Second World War

A suspect caught lurking on CCTV around the time of the incident remains unidentified.

The cost of the clean-up from this incident ran into several thousands of pounds.

Similar graffiti was daubed on the nearby Animals in War memorial.

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  • War memorials attacked

    The plastic sheeting covering graffiti on the side of the Bomber Command memorial in Green Park, London which has been changed from black to white plastic sheeting.

  • War memorials attacked

    The plastic sheeting covering graffiti on the side of the Bomber Command memorial in Green Park, London which has been changed from black to white plastic sheeting.

  • War memorials attacked

    Plastiic sheeting covers part of the RAF Bomber Command War Memorial in central London, after it and the Animals in War Memorial was daubed with graffiti.

  • War memorials attacked

    A tarpaulin covers part of the Animals in War Memorial on Park Lane in central London, after it and the RAF Bomber Command War Memorial was daubed with graffiti.

  • Bomber Command Memorial

    Dame Judi Dench during a to visit to the Bomber Command Memorial in Green Park, London, as she has been recognised as the first Patron of the RAF Benevolent Fund's Upkeep Club, raising money to maintain the memorial for future generations.

  • Bomber Command Memorial

    Dame Judi Dench (right) poses with Air Commodore Charles Clarke and Igraine Hamilton during a to visit to the Bomber Command Memorial in Green Park, London, as she has been recognised as the first Patron of the RAF Benevolent Fund's Upkeep Club, raising money to maintain the memorial for future generations.

  • The Royal Air Force's Memorial Flight Lancaster Bomber sweeps low over the Derwent Dam in England, Thursday, May 16 2013, in commemoration of the 70th anniversary of the Dams raid on Germany during WWII. The raid, led by Wing Commander Guy Gibson, commenced on May 16 1943 when 19 RAF Lancaster Bombers of 617 Squadron launched an air assault using 'bouncing bombs' - destroying the Mohne and the Eder dams, and damaging a third. As a result the Squadron has ever after been known as "The Dambusters". (AP Photo / Rui Vieira) UNITED KINGDOM OUT : NO SALES : NO ARCHIVE

  • The Royal Air Force's Memorial Flight Lancaster Bomber sweeps low over the Derwent Dam in England, Thursday, May 16 2013, in commemoration of the 70th anniversary of the Dams raid on Germany during WWII. The raid, led by Wing Commander Guy Gibson, commenced on May 16 1943 when 19 RAF Lancaster Bombers of 617 Squadron launched an air assault using 'bouncing bombs' - destroying the Mohne and the Eder dams, and damaging a third. As a result the Squadron has ever after been known as "The Dambusters". (AP Photo / Rui Vieira) UNITED KINGDOM OUT : NO SALES : NO ARCHIVE

  • The Royal Air Force's Memorial Flight Lancaster Bomber sweeps low over the Derwent Dam in England, Thursday, May 16 2013, in commemoration of the 70th anniversary of the Dams raid on Germany during WWII. The raid, led by Wing Commander Guy Gibson, commenced on May 16 1943 when 19 RAF Lancaster Bombers of 617 Squadron launched an air assault using 'bouncing bombs' - destroying the Mohne and the Eder dams, and damaging a third. As a result the Squadron has ever after been known as "The Dambusters". (AP Photo / Chief Tech John Cristian, RAF)

  • Bomber Command Memorial

    Queen Elizabeth II unveils the Bomber Command Memorial in Green Park, London, watched by the Duke of Edinburgh and the Prince of Wales (right).

  • Bomber Command Memorial

    The Bomber Command Memorial in Green Park, London which was unveiled by Queen Elizabeth II today.

  • Bomber Command Memorial

    Queen Elizabeth II, the Duke of Edinburgh, Prince of Wales and Camilla the Duchess of Cornwall attend the unveiling of the Bomber Command Memorial in Green Park, London.

  • Bomber Command Memorial

    Camilla the Duchess of Cornwall talks to former airman Dick Lempriere of the NZRAF from New Zealand, after Queen Elizabeth II unveiled the Bomber Command Memorial in Green Park, London.

  • Bomber Command Memorial

    Queen Elizabeth II, the Duke of Edinburgh and Prince of Wales attend the unveiling of the Bomber Command Memorial in Green Park, London.

  • Bomber Command Memorial

    The Prince of Wales speaks with Les Temple (right) from Ilford, Essex, after Queen Elizabeth II unveiled the Bomber Command Memorial in Green Park, London.

  • Bomber Command Memorial

    The Prince of Wales speaks with former members of WWII RAF Bomber Command, after Queen Elizabeth II unveiled the Bomber Command Memorial in Green Park, London.

  • Bomber Command Memorial

    The Bomber Command Memorial in Green Park, London, which was unveiled by Queen Elizabeth II.

  • Bomber Command Memorial

    Duke of Edinburgh attends the unveiling of the Bomber Command Memorial in Green Park, London.

  • Bomber Command Memorial

    The Bomber Command Memorial in Green Park, London, which was unveiled by Queen Elizabeth II.

  • Bomber Command Memorial

    The Bomber Command Memorial in Green Park, London, which was unveiled by Queen Elizabeth II.

  • Bomber Command Memorial

    Queen Elizabeth II, the Duke of Edinburgh and Prince of Wales attend the unveiling of the Bomber Command Memorial in Green Park, London.