MANHATTAN, N.Y. — One person is dead and four firefighters were injured after a blaze broke out in an apartment on the 50th floor of Trump Tower just before 6 p.m. on Saturday, the FDNY said.

More than 200 firefighters and EMS battled the four alarm fire with lots of smoke damaging other apartments above.

“The apartment was virtually entirely on fire,” Daniel Nigro, NYC Fire Commissioner, said at a news conference. “They pushed in there. Heroically.”

Police said the occupant of the 50th floor of the apartment, 67-year-old Todd Brassner, was seriously injured and was taken to an area hospital, where he was later pronounced dead.

The four firefighters have non-life-threatening injuries, according to fire officials. No members of the Trump family were in the building, Nigro said.

#FDNY members remain on scene of a 4-alarm fire, 721 5th Ave in Manhattan. There is currently one serious injury to a civilian reported. (Photo credit: @nycoem) pic.twitter.com/0Smiljyupg — FDNY (@FDNY) April 7, 2018

#FDNY members remain on scene of a 4-alarm fire, 721 5th Ave in Manhattan. There is currently one serious injury to a civilian, and 3 non-life-threatening injuries to Firefighters, reported pic.twitter.com/c7qeOlDVcf — FDNY (@FDNY) April 7, 2018

Fire in Trump Tower worsening pic.twitter.com/6T1VsOCsuP — Peter Thomas Roth (@PeterThomasRoth) April 7, 2018

The fire was not under control until about 8 p.m. due to the heavy smoke condition in the building, according to the FDNY. Nigro said it was difficult to fight the flames.

“To have to get up there. The building contains the heat and smoke," he said.

Several groups of tourists were inside Trump Tower and walking near the Trump store. They shared their videos of the fire and their stories of being evacuated.

“It was a little scary,” Stephanie Jones, a Texas tourist, told PIX11.

“We were worried and concerned about whoever was up there,” Christina Cibulka from Virginia said.

President Trump and his son, Eric, thanked the FDNY for putting out the fire on Twitter. The president also said that Trump Tower is a "well-built building."

Fire at Trump Tower is out. Very confined (well built building). Firemen (and women) did a great job. THANK YOU! — Donald J. Trump (@realDonaldTrump) April 7, 2018

Thank you to the amazing men and women of the NYFD who extinguished a fire in a residential apartment at @TrumpTower. The @FDNY and @NYPD are truly some of the most incredible people anywhere! 🇺🇸🇺🇸 — Eric Trump (@EricTrump) April 7, 2018

The cause of the fire is still unknown.