A West York Borough police officer and a gunman were killed a shooting Saturday morning that injured multiple staffers at UPMC Memorial Hospital in York County, Pennsylvania, the district attorney said.

Police responded to an active shooter incident at a hospital in York, Pennsylvania, on Saturday morning and there is no ongoing threat, officials said.

A memorial is growing as a Pennsylvania community mourns the loss of a police officer on Saturday. The officer was killed in the line of duty when a gunman opened fire inside the UPMC York Memorial Hospital.