G-20 march turns chaotic on streets of Pittsburgh

PITTSBURGH — Protesters and police are clashing on the streets of Pittsburgh after police tried to break up a march opposing the Group of 20 summit.

Protesters rolled trash bins toward police and a man in a black hooded sweat shirt threw rocks at a police car, breaking the front windshield. Some protesters also are using pallets and corrugated steel to block a road.

Officers fired pepper spray and smoke at the protesters. Some of those exposed to the pepper spray were coughing, complaining of eyes watering and stinging.

The march began with several hundred protesters. It did not have a city permit and police declared it an unlawful assembly. The group broke into smaller groups after being confronted by police.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

PITTSBURGH (AP) — Protesters and police are clashing on the streets of Pittsburgh after police tried to break up a march oppposing the Group of 20 summit.

Protesters rolled trash bins toward police and a man in a black hooded sweat shirt threw rocks at a police car, breaking the front windshield. Some protesters also are using pallets and corrugated steel to block a road.

Officers fired gas at the protesters. Some of those exposed to the gas were coughing, complaining of eyes watering and stinging.

The march began with several hundred protesters. It did not have a city permit and police dec