Investigators are trying to determine why an armed man targeted a hospital in the US state of Pennsylvania, killing one officer and injuring several medical staffers. Bearing a pistol, the armed man ...

A man armed with a pistol and carrying zip ties entered a Pennsylvania hospital’s intensive care unit Saturday and took staff ...

A man who took hostages at UPMC hospital during a shooting that killed a police officer and wounded five others highlights ...

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

Lester Mendoza, a physician's assistant at UPMC Memorial Hospital in York, said he helped tell the shooter a loved one had ...

Workers at a Pennsylvania hospital who were injured during a shooting that left the gunman and a police officer dead were ...

The man who authorities say entered a Pennsylvania hospital with zip ties and a pistol over the weekend had recent contact with the hospital’s intensive care unit, where he took staff members hostage ...

The officer killed while responding to a shooting and hostage situation at a Pennsylvania hospital on Saturday had celebrated ...

Cops encountered Archangel-Ortiz holding a female staffer at gunpoint with her hands bound, officials said. The officers ...