NEW BRUNSWICK, NJ - City fire officials are looking at surveillance video from nearby buildings in an attempt to discover the cause of a fire that engulfed a building on Easton Avenue early Monday morning.

The cause of the fire that damaged Welsh Farm Convenience shop, the Amsterdam Smoke Shop and two top-floor apartments is sill undetermined, city fire official Dominick Quagliata told TAPinto New Brunswick after Wednesday's City Council meeting.

Quagliata said city police have collected security footage from the area in hopes of learning more about how the fire started.

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Fire officials have determined that the fire started in the back of the building, under a porch outside the structure.

None of the occupants were hurt, but two firefighters were treated for injuries at Robert Wood University Hospital and released. One had a knee injury and the other suffered a cut hand, according to fire director Robert Rawls.

City firefighters had been at another part of town putting out a small porch fire when the blaze on Easton Avenue started a little after 2 a.m.

The fire was under control after 4 a.m., Rawls said.