UPDATE | Police, protesters clash again outside St. Louis

FERGUSON, Mo. (AP) — Police in riot gear fired tear gas into a crowd of protesters in a St. Louis suburb where an unarmed black teenager was fatally shot by police over the weekend, as tension rose despite calls from his family for collective calm.

Between two nights of unrest, the local NAACP hosted a community forum Monday night that drew hundreds of people to a sweltering church in Ferguson, where an unarmed 18-year-old, Michael Brown, was shot multiple times by a police officer.

A large crowd that gathered throughout Monday at the site of a burned-out convenience store turned rowdy at nightfall, with people throwing rocks at police. Officers used tear gas and shot "beanbag rounds" meant to stun them, Ferguson Police Chief Tom Jackson said.

There were at least five arrests but no reports of looting, St. Louis County police spokesman Brian Schellman said. The night before, nearly three dozen people were arrested after a candlelight vigil as crowds burned stores, vandalized vehicles, assaulted reporters and taunted officers.

"People are tired. They have reached the end of their rope," Ruth Latchison Nichols said after the NAACP forum, where many more were left waiting outside once the pews reached capacity. "Enough is enough. This is a state of emergency."