One person was killed and four firefighters were injured on Saturday evening when fire broke out at Trump Tower in New York.

First responders reportedly performed Cardiopulmonary resuscitation on one person, and he was rushed to St. Luke’s-Roosevelt Hospital, where he later died.

The four firefighters also suffered smoke inhalation in the blaze, but were expected to recover.

The Fire Department of New York (FDNY) tweeted that the fire at Trump Tower had been upgraded to a Category 4 alarm fire from a Category 3 fire alarm.

FDNY Commissioner Daniel Nigro tweeted at about 8 p.m.: “We found fire on the 50th floor of the building. The apartment was entirely on fire.

“Members pushed in heroically, they were knocking down the fire and found one occupant of the apartment who is in critical condition.

“This was a very difficult fire. As you can imagine, the apartment is quite large, we are 50 stories up.

“The rest of the building had a considerable amount of smoke. 200 Firefighters and EMS – emergency medical services – members are on scene.

“We had many floors to search, and stairways, and right now the only civilian injury is to the occupant of that apartment. There are four Firefighters with non-life-threatening injuries.

“The fire is still not considered to be under control because of the smoke conditions on all the floors above.”

President Donald Trump, his wife Melania and son Barron were not in the New York apartment this weekend, where he maintains a three-story penthouse residence.

Trump tweeted at 6:42 p.m. that the fire was under control, as he boasted about the building’s construction.

“Fire at Trump Tower is out. Very confined (well built building). Firemen (and women) did a great job. THANK YOU!” Trump wrote.

Trump Tower was the scene of a small fire in January.