Motive unclear for killing of 3 Baton Rouge police officers

A black gunman shot dead three police officers in the Louisiana capital on Sunday, in the latest spate of violence involving law enforcement. The shooting, which also wounded three other officers, took place in a city scarred by high racial tensions and numerous protests against police brutality since the death earlier this month of Alton Sterling, a black man shot at point-blank range by police. Louisiana State Police Superintendent Colonel Mike Edmonson told reporters the gunman behind the shootings was killed and there are no suspects at large. The motive was not immediately clear. The shooting took place along a highway around 08:40 (13:40 GMT), after police responded to a call about a man carrying a rifle.