An officer was killed and multiple people were injured in a shooting reported at UPMC Memorial Hospital in York County, Pennsylvania on Saturday afternoon.

YORK COUNTY, Pa. (WHTM)– An active shooter situation locked down UPMC Memorial in York County, according to officials from West Manchester Township. Details are limited at this time, but officials from West Manchester Township have confirmed that it is an active shooter situation. Residents should avoid the area around UPMC Memorial.

Authorities described the shooting of a gunman who opened fire at a Pennsylvania hospital as “absolutely justified, beyond any and all doubt.”