Thomas Woods, 36, reportedly a member of the Hells Angels motorcycle club was fatally shot in the head as he drove on a street paralleling the westbound lanes of the Schuylkill Expressway in South Philadelphia, police said.

Woods was shot while driving his gray GMC pickup headed in the direction of Center City. The truck then crashed into the fence of a used car lot near Vare Avenue and New Hope Street. Sources say members of the Pagans drove up along side Woods and opened fire.

When police arrived on the scene another Hells Angels associate was performing CPR on him. The victim was rushed by paramedics to the Hospital of the University of Pennsylvania, where he was pronounced dead.

The victim's family was at the Medical Examiner's Office this morning to identify the body and to receive grief counseling.

In the period after the victim arrived for emergency treatment, a large number of Hell's Angels arrived at the hospital, police said.

Investigators have no suspects in custody.

The biker who stopped to perform CPR was being interviewed this morning at the Homicide Unit in Police Headquarters.

Police said a .380 caliber semi-automatic pistol was found in a pool of blood near the gas pedal on the floor of the truck, leading investigators to believe it belonged to the driver. They also found a spent .380 caliber bullet casing near the scene, a possible indication that the driver may have returned fire.

Investigators said they will examine the gun. The victim's hands will be tested for gunfire residue.

Police were following up on a report that members of the Hell's Angels had gathered Thursday night to party at a nighspot in South Philadelphia. Investigators said they were concerned that if the slaying is linked to biker violence, retaliatory violence could occur.

A State Police message this reported that the gunman may have been in a white Chevrolet SUV bearing a Pennsylvania license plate. The message warned officers to use "extreme caution" if the vehicle is stopped because the occupants are "likely armed."