State police take charge in Missouri
Thousands of people have held vigils across America, in honour of an unarmed black teenager killed by police in Missouri.
Moments of silence and protests were held in New York, Chicago, Atlanta and elsewhere, five days after Michael Brown was shot dead.
After four nights of violence in Ferguson, Missouri, where the 18 year old died, state police have now taken charge of security.
But there has been strong criticism of the way police tried to restore order during the protests.
Our correspondent Ben Geoghegan reports.
- From the section US & Canada