DALLAS -- Police are investigating after a 40-year-old man was shot outside his home.

At about 12 a.m. Thursday, the man pulled into his driveway in an alley on Santa Anna Avenue, off Shiloh Road and Interstate 635, when he was confronted by the armed suspect.

The man told officers he was sitting in his car when the suspect approached him, pointed a gun, and demanded his property. The suspect and victim got into a struggle over the gun, and it went off and hit the victim in the head.

The suspect ran away on foot, and the victim was taken to a nearby hospital.

His name has not been released, and no arrests have been made.