UPDATE: 'Gunman killed' after shooting at New York City's Bronx Lebanon hospital

Shots have been fired inside New York City’s Bronx Lebanon hospital this afternoon, with police confirming that the suspected gunman is dead.

Local media is reporting that several people, including at least three doctors, were wounded by gunfire.

Very little information is available at present from official sources.

At least one of the wounded doctors was being treated by people inside the hospital who fashioned a tourniquet from an emergency fire hose, according to the official, the New York Times said.

As many as five or six people may have been wounded, the Times added, citing a law enforcement official who spoke on condition of anonymity.

Police are still working to secure the area, preventing emergency medical workers from entering, the newspaper said.

CBS News reported that the gunman, believed to be a former hospital employee, had a rifle and had barricaded himself inside the building.

New York Police Department spokesman Peter Donald posted a message a short time later on Twitter, saying, "One shooter is deceased at the hospital."

It is unclear if authorities are looking for anyone else in connection with the incident.

On Twitter, the New York Police Department told members of the public to avoid the area around the hospital, located in the borough of the Bronx at 1650 Grand Concourse.