NEW YORK - A man pulled a rifle from under his white lab coat and opened fire inside a Bronx hospital Friday, killing at least one person and wounding several others before apparently taking his own life, police said.

The gunfire broke out at 2:50 p.m. Friday inside the Bronx Lebanon Hospital in the Bronx.

Officers went floor by floor looking for the gunman and reported just before 4 p.m. that the shooter was dead inside the building.

According to police, the gunman was a doctor who formerly worked at the hospital.

Bronx-Lebanon Hospital Center describes itself as the largest voluntary, not-for-profit health care system in the south and central Bronx.

The 120-year-old hospital claims nearly 1,000 beds spread across multiple units. Its emergency room is among the busiest in New York City. The hospital is about a mile and a half north of Yankee Stadium.