Londons police
UPATE: Woman killed, five injured in central London knife attack
One woman was killed and five other people were injured by a man with a knife in central London.
The 20-storey block in London is known for being the home of the Metropolitan Police Service.
London police is bolstering its relations with New York's DA’s office to help ward off cyber-attacks.
London has trumped New York and Paris as the most appealing country to work in.
A number of protests and counter-protests have taken place after the brutal killing of soldier, Lee Rigby.
Sources say the two men accused of hacking a soldier to death were known to security services.