Pennsylvania State Police are investigating after a man and woman showed up at a hospital and said they had been shot in their legs when someone opened fire on them while they were in an SUV on I-95 in Port Richmond.

The wounds were not life-threatening, officials said.

Philadelphia police said they were called to Episcopal Hospital in Kensington about 9:45 p.m. Wednesday after two people walked in with gunshot wounds to their legs.

The 25-year-old woman and 24-year-old man told police they were in an SUV on I-95 northbound near Allegheny Avenue when gunfire erupted from another vehicle, Philadelphia Police Chief Inspector Scott Small told reporters.

A third person who had been with the pair when they were shot for some reason drove away in the SUV after the gunshot victims arrived at the hospital, officials said. Police later pulled over a black SUV with five bullet holes on the driver’s side at Kensington and Lehigh Avenues, not far from the hospital.

Small said the investigation was turned over to the State Police because the shooting reportedly occurred on I-95.

He said State Police are expected to check videos from the interstate to see if any cameras along the highway captured the shooting.

Late Thursday morning, police briefly closed the northbound lanes of I-95 near Girard Avenue so investigators could look for possible evidence on the roadway on foot. There was no immediate word if they found anything.