President Barack Obama has condemned what he calls an "appalling attack" that killed a British soldier yesterday.
Two men have been accused of butchering the soldier with knives and a meat cleaver on a London street while horrified bystanders watched.
Obama said in a written statement today that the US stands with Britain "against violent extremism and terror". He said the two countries' special relationship is especially important in times of trial.
Obama said: "There can be absolutely no justification for such acts" and offered prayers for the victim's family and the British people.
The president said he is looking forward to visiting Britain next month for an economic summit in Northern Ireland, where world leaders plan to talk about global security challenges.
