Nearly 90 firefighters battled a three-alarm blaze at the American History High School building in Newark Wednesday, Public Safety Director Anthony Ambrose said in a statement.
The fire broke out at the vacant school on Warren Street around 12:30 p.m. It was brought under control in about 90 minutes, Ambrose said.
A fire firefighter suffered a minor injury and was treated at University Hospital.
The cause of the fire was under investigation.
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