Hours after firefighters doused a four-alarm blaze at a commercial building on Fulton Street in lower Manhattan, the FDNY responded to a three-alarm fire at the same establishment.
Firefighters contained Monday's fire shortly before 8 a.m. and continue to spray water on hotspots.
A fire department spokesman says firefighters worked through the afternoon Sunday to make sure the fire was out. But at 1:55 a.m. Monday they received a 911 of a fire at the same building.
The blaze had escalated to a third alarm shortly before 3:45 a.m. Part of the roof collapsed amid the intense heat.
One firefighter was taken to the hospital with minor injuries after Monday's fire, but no one else was hurt, authorities said. Three firefighters suffered minor injuries in Sunday's blaze.
No people were in the five-story, mixed-occupancy building when the flames erupted, officials said.
The fires are under investigation.