PHILADELPHIA (AP) — Authorities say eight teenagers in northeast Philadelphia have been injured in another shooting involving a city bus. Wednesday’s shooting is the fourth shooting on the transit system in as many days. Philadelphia’s police commissioner Kevin Bethel says students from Northeast High School were waiting for a bus when three people emerged from a car and fired more than 30 shots. Bethel says one student was critically wounded: a 16-year-old who was hit nine times. The others are in stable condition. Transit spokesperson John Golden says the injured were taken to two hospitals. Two buses were hit by gunfire, but there were no reports of passengers or the driver being hurt.