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.

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

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

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