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Police forensics tents and officers are seen in Woolwich, east London, May 22, 2013.
British police shot and wounded two men after a man thought to be a serving soldier was killed outside a London barracks, in an attack Prime Minister David Cameron called "truly shocking."
In a dramatic move, the government's emergency response committee was being summoned following the killing which some eyewitness reports suggested was an attempted beheading using machete-like knives.
THE FOLLOWING SLIDE CONTAINS GRAPHIC CONTENT FROM A CRIME SCENE
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A suspect in the brutal attack is seen in this screen grab holding blood-soaked knives.
In footage caught by a passerby, the man speaks to the camera, saying: "We swear by Almighty Allah we will never stop fighting you. The only reasons we have done this is because Muslims are dying every day. This British soldier is an eye for an eye a tooth for tooth. We apologize that women had to see this today but in our lands our women have to see the same. You people will never be safe. Remove your government. They don't care about you."
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Police officers man a cordoned-off area in Woolwich, east London, following an incident in which a man was killed and two others seriously injured, May 22, 2013.
A man thought to be a serving soldier has been killed near a barracks in London, while two alleged suspects are in serious condition after police responded to reports of an incident, the local lawmaker said. The incident took place in a street near the Royal Artillery Barracks in Woolwich.
Leon Neal/AFP/Getty Images
Police officers man a cordoned-off area in Woolwich, east London, following an incident in which a man was killed and two others seriously injured, May 22, 2013.
A man thought to be a serving soldier has been killed near a barracks in London, while two alleged suspects are in serious condition after police responded to reports of an incident, the local lawmaker said. The incident took place in a street near the Royal Artillery Barracks in Woolwich.
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Police near the crime scene in Woolwich, May 22, 2013. It has been reported that the government and police are treating the incident as a possible terrorist attack.
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Police at the scene in Woolwich following a gruesome killing, May 22, 2013.
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Police at the scene in Woolwich, May 22, 2013.
Leon Neal/AFP/Getty Images
A police car is parked outside the Royal Artillary Barracks in Woolwich, east London, May 22, 2013 brutal killing.
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Police at the scene in Woolwich, May 22, 2013.
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Scenes of Crime Officers at the scene in Woolwich following a brutal killing, May 22, 2013.
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Crime Officers at the scene in Woolwich following a brutal killing, May 22, 2013.
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A general view of the Woolwich Barracks, near to the scene of a brutal killing in Woolwich, May 22, 2013.
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A general view of the Woolwich Barracks, near to the scene of a brutal killing in Woolwich, May 22, 2013.
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Police talk to local residents near the scene of a brutal killing in Woolwich, May 22, 2013.
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Police near the crime scene in Woolwich, May 22, 2013.
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Scenes of Crime Officers at the scene in Woolwich, May 22, 2013.
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A tent is erected near the scene of the attack in Woolwich, May, 22, 2013.
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Crime Officers at the crime scene in Woolwich, May 22, 2013.
Alastair Grant/AP
British forensic officers attend the scene of an apparent attack which has left one man confirmed dead and two people wounded near Woolwich barracks in London, May 22, 2013.
Alastair Grant/AP
British forensic officers attend the scene of an apparent attack which has left one man confirmed dead and two people wounded near Woolwich barracks in London, May 22, 2013.