NSNEWS ONLINE DESK:A fire broke out on the roof of Trump Tower early Monday, authorities said.
The flames ignited on the top floor of the Fifth Avenue tower just before 7 a.m.
There were no reported injuries or evacuations.
Video was taken by Twitter user Andy Constan shows smoke billowing from the 68-floor high-rise at 721 Fifth Ave., which houses businesses and residences.
The FDNY will investigate the cause of the fire.
