Tags: Demonstrators

The St. Louis suburb of Ferguson, Missouri, the site of a year of occasionally violent protests over the police killing of an unarmed black teen, will remain under a state of emergency for at least another night, county officials said on Wednesday.

Crowds clashed with police during May Day marches in several U.S. west coast cities late on Friday, as officers responded with stun grenades and pepper spray, police and media said.

An anti-capitalist May Day march in Seattle turned violent on Friday when demonstrators threw rocks and wrenches at police, who responded by lobbing "flashbangs" and shooting pepper balls, according to police and media reports.