San Antonio police are investigating a road rage shooting that ended in a double rollover wreck that killed the suspected shooter and injured three others, including a child.

Police investigators said a blue SUV and a maroon pickup were westbound Highway 151, when the SUV cut off the pickup.

Police said the pickup truck's driver, a man in his 40s, pulled out a gun and shot at the SUV, hitting its front passenger -- a man in his mid- to late-20s -- in his arm.

The shooting caused both drivers to lose control, forcing the vehicles off the road, wherey the both flipped and rolled over.

The pickup's driver -- the suspected shooter -- was killed in the wreck, investigators said.

The wounded man, the SUV's driver and a child were all taken to University Hospital in unknown condition.

It is not known if the pickup's driver was wearing a seatbelt.