Two teenagers were shot in West Mifflin Monday evening.
Allegheny County Police say it happened in the 10 block of Midway Drive around 5:45 p.m.
Police said one victim was in critical condition with a chest wound and the other was stable after being shot in the leg.
Investigators believe the 15 and 17-year-old boys shot each other.
Anyone with any information is asked to call 1-833-ALL-TIPS.