Woolwich attack: Timeline of events
A man has been killed in a machete attack and two suspects shot by police in Woolwich, south-east London.
Prime Minister David Cameron said there were "strong indications that it is a terrorist incident" and the UK would "never buckle" in the face of such attacks.
Footage has emerged showing a man wielding a bloodied meat cleaver and making political statements.
BBC News looks at events as they unfolded.