London: Man allegedly beheaded by two others,terror attack suspected

8220;Two men,who we believe from early reports to have been carrying weapons,were shot by police,8221; Commander Simon Letchford said.

10,Downing Street has called a meeting of the Government8217;s Cobra emergency committee after the incident,which Prime Minister David Cameron described as 8220;truly shocking8221;.

Senior police officers are thought to believe the killing was a politically-motivated Islamist terrorist attack and video has emerged that appears to show one of the alleged attackers attempting to justify the pair8217;s actions,the Telegraph reported.

Dozens of weapons 8211; including a number of knives and pools of blood could be seen on the ground,where a man wearing a Help for Heroes T-shirt is said to have been attacked by two men.

According BBC quoting senior Whitehall sources,the people carrying out the attack were heard saying 8216;Allahu Akbar8217; God is Great.

Local MP Nick Raynsford said he had been told the man attacked on the street was a soldier serving at the Royal Artillery Barracks.

Whitehall sources have told the BBC it is 8220;a fair supposition8221; that the incident was a terrorist incident but police have not commented publicly on the suggestion.

London Ambulance Service confirmed one man had been found dead at the scene.

It said two men had been taken to hospital,one in a serious condition.

One of the men was airlifted from the scene,and another was taken away by road ambulance.