The ire broke out mid-morning on Thursday at Campozino's at 16 Ferry St, according to initial reports.
Heavy smoke was reported in the eves of the building at about 13:30 a.m. when firefighters were trying to access the origin of the fire, reports said.
A tower truck was being used to douse flames in the building's chimney and restaurant ductwork, repots said.
The restaurant typically opens at 11 a.m. No one was reported hurt, according to initial reports.
This is a developing news story.
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