London Marathon 'will go ahead'
16 April 2013 Last updated at 02:50 BST
Security for Sunday's London Marathon will be reviewed after two fatal explosions hit the Boston Marathon in the US, British police have said.
At least three people were killed and more than 100 injured by the blasts near the finish line of Monday's event.
London Marathon chief executive Nick Bitel told the BBC that he "fully expected" the London Marathon to go ahead.