It was a traumatizing ride for dozens of people on board SEPTA's Route 15 bus when police say a man pulled a gun from his bag and started shooting inside Saturday night.

Four people were shot, including three teens, while riding a SEPTA bus in North Philadelphia on Saturday, police said. The quadruple shooting took place at the intersection of 33rd Street and Girard Avenue, police said. Around 30 people were on the bus at the time of the shooting, police said.