A DEADLY fire broke out on the 50th floor of Trump Tower - killing one person and injuring four firefighters.

Huge flames and billowing smoke could be seen coming out of a window of the New York landmark - where the President has a $100million penthouse apartment - shortly before 6pm.

19 A huge fire could be seen raging from the 50th floor window of Trump Tower Credit: Twitter

First responders found a male resident, 67, in critical condition and gave CPR, but he died shortly after arriving at St. Luke’s-Roosevelt Hospital.

He was later identified as Todd Brassner - a prominent art dealer who once filed for bankruptcy for $2.5million and is mentioned in Andy Warhol's autobiography.

Fire crews rushed to the scene to battle the flames as burning debris fell onto the streets below.

Horrified witnesses tweeted: "There is a fire right now in Trump Tower.

"Was small and then something happened where the size doubled in seconds!"

Videos on social media show licking flames and stunned onlookers watching from the ground.

New York fire crews graded it a Three-Alarm blaze, meaning a minimum of 33 units and 138 firefighters were sent.

19 Art dealer Todd Brassner, 67, was named as a victim of the fire

19 Mr Brassner, pictured here in younger days, was a friend of Andy Warhol

19 Debris could be falling from the burning building onto the streets below Credit: Peter Thomas Roth

19 Fire burns in the downtown landmark. The blaze left one man dead, and four firefighters injured Credit: Getty - Contributor

Video showing smoke and flames coming out of the Trump Tower in New York

19 Tourists and day trippers were caught up in the panic as the fire broke out in the building above them Credit: Reuters

19 The deadly blaze could be seen for miles around Manhattan

Clouds of smoke emerge from the Trump Tower in New York -

19 Huge billows of black smoke poured from the 50th floor of President Trump's business base

Scenes from the Trump Tower show plumes of smoke as massive fire erupts on the 50th floor of the building in New York

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

19 Stunned onlookers watch the blaze raging above them Credit: Twitter

#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

19 During the incident, the President was in Washington DC, where he was seen at the luxury Trump International Hotel Credit: EPA

19 The President and the First Lady leave his luxury hotel in Washington DC Credit: EPA

Four FDNY firefighters sustained non-life threatening injuries from smoke inhalation and are currently undergoing treatment.

The blaze broke out at around 10.30pm GMT, and 5.50pm local time.

President Trump, who is not in the building today, has an office in the Tower on the 26th floor and triplex penthouse apartments on floors 66 to 68.

The apartment is hidden behind an entryway gilded in gold and diamonds.

Trump took to Twitter in the aftermath of the blaze to confirm it had been dealt with by emergency services.

He said: "Fire at Trump Tower is out. Very confined (well built building).

19 A firefighter looks out from the window of a fire damaged apartment in Trump Tower in New York

19 Fire crews rushed to the scene of the 'three-alarm' blaze Credit: AFP or licensors

19 Almost 300 firefighters responded to the 'three-alarm' emergency. Four were left suffering smoke-inhalation injuries Credit: Reuters

19 The Manhattan street was cordoned off as fire crews tackled the blaze - the second at the tower this year Credit: AFP or licensors

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

19 Witnesses said the fire started small, but quickly doubled in size Credit: Peter Thomas Roth

"Firemen (and women) did a great job. THANK YOU!"

His son, Eric Trump, also Tweeted his praise, writing: "Thank you to the amazing men and women of the NYFD who extinguished a fire in a residential apartment at Trump Tower.

"The New York fire and police departments are truly some of the most incredible people anywhere!"

There were no forced evacuations, but some people fled the tower as alarms rang out around the building.

FDNY Commissioner Daniel Nigro told a press conference "the apartment was virtually, entirely on fire" when firefighters arrived.

He added: "They were knocking down the fire, they found one occupant.

"He is in critical condition. He has been removed to St. Luke's Hospital."

19 Trump has a triplex of penthouse apartments at the top of the building bearing his own name Credit: Getty - Contributor

19 The fire broke out on the 50th floor of the Manhattan tower named after the President

19 Jan, 59, from London, had just stepped inside Trump Towers Starbucks with her son when they heard a huge bang Credit: NYC Traveler TV / Periscope

Emergency services closed 5th avenue for three blocks.

Donald, wife Melania and their son, Barron, are both in Washington, D.C., according to spokesman, Stephanie Grisham.

Brit tourist Jan, 59, from London, was in the Starbucks within Trump Tower with her son when the fire broke out.

She described a "scary" loud noise before alarms started ringing out.

A big fire broke out at Trump Tower back in January injuring two workers and a firefighter.

The blaze erupted when empty water-storage units caught fire on the roof of the 68-story building.

One firefighter sustained minor injuries when debris fell on him.

MOST READ IN NEWS SKIN DEEP Skin rash IS Covid symptom, experts warn - the 8 different types revealed Latest RALLYING CRY PM says 'pull together' and warns 'your cough could be someone's death knell' Exclusive PIERS PRESSURE Couple wiped out village's internet for 18 MONTHS to watch Piers on £30 TV MASS EVACUATION Thousands forced to leave mega caravan park as Covid lockdown rules kick in Exclusive OWN GOAL Paul Scholes breaches lockdown AGAIN by hosting footie tournament in his garden COV-ER & OUT Lockdown-free Sweden 'on brink of BEATING Covid after achieving herd immunity'

Trump Tower serves as the headquarters for The Trump Organization.

Construction on the building began in 1979.

As well as business dealings, the tower is home to many residents, and several of the Trump family.

We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368. You can WhatsApp us on 07810 791 502. We pay for videos too. Click here to upload yours.