PHILADELPHIA (CBS) — Police are investigating the scene of a shooting where a 20-year-old man was shot in the back of the head.

Officers from the 15th district responded to the 5300 block of Charles Street before 1 p.m. and found the victim shot once in the back of the head and once in the stomach.

The victim was transported to Aria Torresdale Hospital and is in critical condition.

So far no weapon has been recovered and no arrests have been made.

Police describe the suspect as a black male possibly driving a black SUV.