The building at 901 Grand Concourse is on fire.
The fire department says it’s the first in the city to be damaged by an arson attack.
The blaze broke out late Wednesday morning at the Bronx-Lebanon Hospital, which serves about 4,000 patients in Bronx, Brooklyn and Queens.
The hospital’s fire department tweeted that the building was on fire when it caught fire, with a news release stating that the hospital was forced to evacuate its patients and staff to safety.
The fire was quickly extinguished, the fire department said, but there were some injured people inside the building.
The cause of the fire is still under investigation.
The hospital’s CEO and the CEO of the hospital’s medical center, a family doctor, were injured.
The two were taken to a local hospital.
The CEO is listed in critical condition, according to the hospital.
The Associated Press contributed to this report.