Riot police have fired tear gas to disperse a crowd defying a curfew in the American town of Ferguson, Missouri.
A state of emergency was declared in the town yesterday, after days of unrest over the shooting dead of a black teenager by a white police officer.
A group of up to 200 remained on the streets - in defiance of the curfew - to protest at the killing of 18 year old Michael Brown.
Reporter Greg Milam says the police were quick to respond.
