A mass shooting at UPMC Memorial Center has left the gunman and a police officer killed and multiple hospital staff injured.

The man who authorities say entered a Pennsylvania hospital with zip ties and a pistol over the weekend had recent contact ...

Violence against healthcare workers is on the rise as seen by an attack at a Pennsylvania hospital. A gunman took hostages ...

An officer was killed, and six others were injured after a man armed with a pistol and zip ties entered into a Pennsylvania ...

Investigators were still piecing together what happened a day after a man armed with a pistol and carrying zip ties entered a ...

Investigators are trying to determine why an armed man targeted a hospital in the US state of Pennsylvania, killing one ...

A man armed with a pistol and zip ties attacked a Pennsylvania hospital, leading to a police shootout and the death of an officer.

The chief of the Northern York Regional Police Department said one of the officers injured in Saturday's mass shooting at ...

State police troopers applied a tourniquet to the officer's leg after he had been injured, police chief wrote in a statement.

The suspect, Diogenes Archangel Ortiz, entered the hospital with handgun and zip ties Saturday morning and took several staff members hostage, state officials said.