A black man has been shot dead by police in Minnesota as protests continued over the police killing of a black man in Louisiana. Philando Castile's girlfriend live-streamed the aftermath, showing him covered in blood with a police officer pointing his gun at him. He was shot as he reached for his driving licence, she said. It follows the death of Alton Sterling, who was shot dead by police during an incident in Baton Rouge on Tuesday. Hundreds of people have protested for two nights over Mr Sterling's killing. The deaths follow a long line of high-profile incidents involving African-Americans at the hands of the police, igniting a national debate about the lethal use of force. See:

Stop press: last night in Dallas five policemen were killed, and others wounded, by snipers at a protest meeting.