The framed-out Arbor Road structure "has been under construction and confirmed vacant," Police Chief Kenneth Ehrenberg said Wednesday.
Police and firefighters immediately responded to the collapse shortly before 10 p.m. Tuesday, the chief said.
PSE&G and the borough building department were also notified, he said.
No injuries were reported.
Boyd A. Loving shot the video and contributed to this account.
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ALSO SEE: Police tried in vain to rescue a Little Ferry driver who was killed when his SUV went up in flames as he tried to drive out of a snowbank Wednesday morning.
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