(11-02) 23:05 PDT OAKLAND -- A car struck two Occupy Oakland protesters tonight as they marched with a crowd along Broadway, and an angry mob surrounded the car as emergency workers tended to the injured.

The driver, who was not identified, sat in his silver Mercedes-Benz sedan after the 7:30 p.m. incident while hundreds of people screamed at him through his closed windows.

BART police officers who were guarding nearby transit stations responded, questioned the driver and several witnesses, then let the driver leave the scene at 11th Street and Broadway in his car.

The two people who were hit, a man and a woman, suffered leg and ankle injuries that were not life-threatening, said BART Police Deputy Chief Daniel Hartwig. They were taken to Highland Hospital.

As the driver left, many in the crowd yelled at him and at police, saying he should have stayed at the scene or been arrested.

The incident happened when the driver was heading south on 11th and was blocked by streams of marchers walking along Broadway, witnesses said. He had a green light, but could not get through.

Hartwig said witnesses had differing accounts of what happened, with some saying the driver appeared to have gunned the Mercedes into the victims in frustration and others saying he had been provoked by activists pounding on his car.

Officers gathered information from the driver and witnesses, and now the Oakland Police Department will handle the investigation, Hartwig said.

"It was a pretty volatile situation," he said. "There is no arrest at this time, but that do0esn't mean there won't be if there's a need for an arrest."