Police and paramedics are on the scene of a stabbing at Franklin Regional High School in Murrysville.
Dan Stevens with Westmoreland Emergency Management says 20-students have been injured, four of those are serious.
A school resource officer called in the stabbing at 7:13 a.m.
Police say the male suspect is in custody, and is reportedly a student at the school.
Forbes Hospital says 7 victims have been taken to their hospital, 1 victim has been flown to Allegheny General Hospital, and 2 taken to UPMC-Presby.
Hospital officials say patients range from 15-to-60-years old.
The CEO of Forbes Hospital tells KDKA’s Heather Abraham that one-student applied pressure to an injured classmate, possibly saving student’s life.
Three others are in surgery.
Three air medical helicopters were dispatched to the scene as well as dozens of ambulances.
According to a witness, the stabbings happened in the science wing of the building.