No injuries were reported in the smoky fire, which broke out in the 30 block of Heywood Avenue near Greenwood Drive shortly after 9:30 p.m. Dec. 4.
It was declared under control a little over a half-hour later without the need for mutual aid, responders at the scene said.
The family who lives in the two-family home were forced to move into a hotel for the time being, they said.
Meanwhile, the Fair Lawn Fire Prevention Bureau was trying to determine the fire's cause.
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