Nine people have been arrested in outbreaks of violence in the US city of St Louis after a black teenager was shot dead by police.
Officers say 18-year-old Mansur Ball-Bey
pointed a gun at them during a house search.
Police in Missouri say angry crowds blocked a highway and threw missiles.
“An area that has been plagued by violence, been plagued by gun violence, police officers were there today doing a job that we all ask them to do – to keep our community safe. A group of protesters came together and started to do acts of violence directed not only toward law enforcement but toward the neighbourhood.” St Louis Police Chief Sam Dotson told a press conference.
The unrest comes ten days after St Louis was flooded with protesters marking the anniversary of the killing of unarmed black teenager Michael Brown.
He was shot by a white officer on August the ninth last year in Ferguson, a city not far from St Louis.