The extent of injuries wasn’t immediately known.
The fire, believed to be accidental, broke out in the rear of the Koryeo Grill on Lemoine Avenue around 7:45 a.m., authorities said.
It quickly spread, forcing firefighters to battle it from the exterior. They had the blaze under control within two hours.
The injured firefighter was brought to Holy Name Medical Center in Teaneck, responders said, adding that two others sustained minor injuries.
The Bergen County Prosecutor's Arson Investigations Unit was notified, given the intensity of the fire. The Bergen County Sheriff's Bureau of Criminal Identification collected evidence.
Mutual aid responders included firefighters from Cliffside Park, Edgewater, Englewood Cliffs and Leonia.
(NOTE: The fire rekindled around 6:30 p.m. and was doused by firefighters.)
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