Woolwich eyewitness describes attack
22 May 2013 Last updated at 17:59 BST
An eyewitness to an attack in Woolwich in which a man was killed has described seeing a man pulling out a handgun.
Graham Wilders, who lives locally, told BBC News that he initially thought there had been an accident and that two men were trying to resuscitate the victim.
The government is reported to be treating the attack as a suspected terrorist incident and the prime minister said it was "truly shocking".