Group of protesters angry at the shooting death of a black teenager by a white police officer remained on the streets of Ferguson, Missouri, past a declared curfew.
People at the scene are reporting smoke canisters being fired by the police.
More top news
A British policeman has been found dead more than a month after disappearing while scuba diving in Canada.
The mystery surrounding the death of Knut the polar bear, who collapsed in front of hundreds of shocked zoo visitors, has been solved.
They are birds with an image problem, but vultures - nicknamed 'nature's undertaker' - are in decline which could spell disaster for humans.