Michael Brown killing: Vigils across US for shot teenager

Thousands of people have held vigils across the US in honour of a black teenager killed by police in Missouri.

Protesters in New York, Chicago, San Francisco, Dallas and elsewhere raised their arms in peaceful protest, almost a week after Michael Brown was fatally shot.

Details about the incident have been disputed but eyewitnesses said the unarmed teenager had his arms raised when he was shot multiple times by a police officer.

After four nights of violence in Ferguson, Missouri, where he died, state police took charge of security.