The gunman who opened fire on a Bronx hospital, fatally shooting one person and injuring six others before apparently killing himself, was a doctor who once worked there, authorities said.

The shooter has been identified as Dr. Henry Bello, a former family physician at Bronx-Lebanon Hospital Center. The circumstances under which his employment ended were not immediately clear. Belle reportedly arrived at the hospital wearing a white lab coat that concealed a rifle.

Police said the shooting incident began around 2:50 p.m. ET. The investigation is ongoing. See the blog below for for a recap of the incident.