Dozens of firefighters have been battling the blaze in Elizabeth since it broke out Wednesday afternoon. But safety concerns about the building's stability have kept them from fully attacking the fire, though the warehouse isn't expected to collapse.
Authorities aren't sure what sparked the blaze, though it's believed that it started with a car fire inside a body shop in the warehouse. But it's not clear what items are still burning
The fire has produced thick plumes of black smoke visible from miles away, including the New Jersey Turnpike. But no injuries have been reported.
Crews remained on the scene Saturday to monitor the blaze.