In his statement outside Downing Street, David Cameron said:
"What happened yesterday in Woolwich has sickened us all. On our televisions last night and in our newspapers this morning we have all seen images that are deeply shocking.
"The people who did this were trying to divide us. They should know something like this will only bring us together and make us stronger."
More top news
Ted Robbins is "doing well" and is expected to be "fit and healthy soon" after collapsing on-stage during Phoenix Nights Live, his wife said
Doctors in India have carried out what is believed to be the world's first double hand transplant to be performed on a non-white patient.
Prince George is not only heir to Britain's throne, but a future long distance runner too, if his uncle has anything to do with it.