A gunman who held medical staff hostage before killing a police officer and wounding five others at a hospital in south-central Pennsylvania Saturday is believed to have visited the facility in the days leading up to the incident,

A police officer died and others were injured in what local officials described a hostage crisis involving a man with a gun and zip ties.

Authorities say a gunman entered a Pennsylvania hospital’s intensive care unit and took staff members hostage before he was killed by police in a shootout that also left an officer dead

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