Both firefighters were taken to Bellevue Hospital Thursday morning.
The two-alarm fire started on the second floor of 192 Concord St. It was reported at 4:35 a.m.
The cause was under investigation.
On Wednesday night, another fire in Brooklyn claimed the life of a 35-year-old man. Two other people were injured at the residential fire at 732 Decatur St. They were listed in stable condition.
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