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 ...

Confusion and chaos loom as hundreds of thousands of federal employees begin their workweek on Monday facing a deadline from ...

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