Authorities described the shooting of a gunman who opened fire at a Pennsylvania hospital as “absolutely justified, beyond any and all doubt.”

UPMC announced this morning via a Facebook post that it has closed Memorial Hospital in West Manchester Township to visitors in the wake of a hostage incident Saturday that left one police officer dead, two injured and several staff members injured. The health care system did not say when visitors to patients would once again be welcome.

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

Workers at a Pennsylvania hospital who were injured during a shooting that left the gunman and a police officer dead are reported in “medically stable” condition