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A man died and six firefighters were injured after a fire broke out at  an apartment in the Trump Tower in New York City Saturday evening, officials said.

The firefighters suffered non life-threatening injuries, according to the New York City Fire Department.

The victim was identified as Todd Brassner, 67. He was unconscious and unresponsive when firefighters pulled him out, the New York Police Department said, adding the medical examiner’s office will determine the cause of death.

He lived in the building’s 50th floor and had been taken to a hospital in critical condition, department spokeswoman Angelica Conroy told CNN.

Flames could be seen in a photo tweeted out by the agency about 5:35 p.m. ET. The tweet stated that the fire is at 721 5th Avenue in Manhattan, which is the location of the President Donald Trump’s famed mixed-use skyscraper.

The fire apparently started on the 50th floor and the apartment was “entirely on fire” the agency tweeted.

Firefighters searched numerous floors of the building, which had a “considerable amount of smoke.”

Officials described the fire as being “difficult” because of it’s location and the size of the apartment.

The New York City Police Department tweeted that streets are closed nearby.

No members of the Trump family were at the tower during the fire, Fire Commissioner Daniel Nigro said. President Donald Trump tweeted before the news of the death that the fire was out and “very confined” in the “well built building” and congratulated the firefighters.

Trump tweeted about the incident about 5:42 p.m. ET, indicating that the fire was out. “Very confined (well built building),” the president tweeted. “Firemen (and women) did a great job. THANK YOU!”

Eric Trump also tweeted about the blaze, which he indicated was at a residential apartment, and thanked the fire and police departments.

The cause is under investigation.

The fire at Trump Tower comes three months after a minor fire broke out in a cooling tower on the roof of the building, according to CNN affiliate WCBS-TV. Two people were injured in the fire that officials said may have been caused by electrical heaters inside the cooling tower.