The roof was gutted by the flames and earlier, the smoke could be seen billowing into the sky from Manhattan.
Firefighters responded to the Balcony Restaurant lounge and catering hall in Carlstadt at around 3:30 a.m.
Authorities have released the name of a crew member killed along with a colleague when the plane they were flying crashed this week at a small airport outside New York City.
Jim Silliman with the National Transportation Safety Board said Tuesday afternoon that the voice recorder had been recovered and was being shipped to NTSB headquarters.
Two pilots of a small jet scrambled to keep the plane airborne last year before a fiery crash at a New Jersey airport, surprising air traffic controllers by making a sharp turn closer to the airport than is customary, federal investigative files reveal.
NTSB investigators have revealed that the co-pilot of a Learjet was not authorized to fly the plane that crashed at New Jersey's Teterboro Airport in 2017.