By Tim Jimenez

PHILADELPHIA (CBS) — Police are looking for two gunmen who fled after shooting an unlicensed cab driver in West Philadelphia last night.

An unlicensed cab driver in a Cadillac picked up two men at 52nd and Market just before midnight, according to police.

Investigators say the passengers announced a robbery and one of the attackers got in the front and pistol whipped the 54-year-old driver, who then fought back.

The attackers seemed to be frustrated, says Commissioner Richard Ross.

“I guess they weren’t able to get anything from him,” Ross said. “And the one in the backseat apparently fired a shot and struck him. They then fled on foot.”

Detectives say the bullet went through the seat and hit the victim in the back.

The driver made his way to 52nd and Chancellor. Police arrived and the victim was taken to the hospital in stable condition.

Investigators will be using surveillance footage in the neighborhood as they try to identify the gunmen.