A police officer shot and wounded a 46-year-old man who, police said, attacked another officer with a cinder block yesterday morning in Southwest Philadelphia.

The incident happened about 5:30 a.m. after two officers responded to a report of a disturbance on 57th Street near Chester Avenue.

"The officers were attempting to stop the male and he ran inside a property, grabbed a cinder block and swung it towards one of the police officers," said Lt. Frank Vanore, a police spokesman.

The man, identified as David Beard, a resident of the block, then turned on the cop's partner, police said, and the partner fired three shots, striking Beard in the arms.

It was unclear if the disturbance originated in Beard's home, police said.

The injured officer may have a broken arm but, due to swelling, doctors will have to wait to determine if there is a fracture, Vanore said.

The officer who fired his weapon was not injured and will be placed on administrative duties pending outcome of an investigation, Vanore said.

Beard, who has 11 arrests, was in stable condition at the Hospital of the University of Pennsylvania.

He faces charges of assault on police, possession of an instrument of crime and related offenses, Vanore said.