NEWARK — More than 50 people are homeless and a fire captain was injured after a four-alarm blaze damaged multiple buildings on Mt. Prospect Avenue.

The fire started in a three-story duplex around 12:30 p.m. Monday and eventually spread to adjacent buildings leaving three uninhabitable, Fire Chief John Centanni told NJ Advance Media.

A fire captain suffered a knee injury but no other injuries were reported in the fire, which firefighters continue to battle Sunday afternoon, NJ Advance Media reported. The cause of the blaze is still being investigated, the article states.

Toniann Antonelli is a social content producer for NJ 101.5. She can be reached at toniann.antonelli@townsquaremedia.com, or on Twitter @ToniRadio1015.

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