Woolwich incident: Head teacher on school 'lock down'
22 May 2013 Last updated at 18:09 BST
A man has died and two are injured after police responded to a reported machete attack in south-east London.
The government is reported to be treating the attack as a suspected terrorist incident and the prime minister said it was "truly shocking".
Eyewitnesses said a man was assaulted in a Woolwich street by two individuals who were later shot by officers.
David Dixon, head teacher at Mulgrave Primary School, described seeing a body in the street and hearing gunshots.