The New York Fire Department is responding to a four-alarm fire at Trump Tower in Manhattan.
Firefighters were dispatched to the 50th floor of the building shortly before 6 p.m. on Saturday, CBS New York reported.
Officials said one person is in serious condition following the fire. Three firefighters have sustained non-life-threatening injuries.
Video and photos on Twitter showed the flames bursting from the building.
President Trump tweeted about the incident shortly after initial reports, saying that the fire was under control and thanking local firefighters for their quick response.