NEW YORK (CBSNewYork) — Authorities late Friday were investigating a fire that left a 10-year-old boy dead in an East New York, Brooklyn public housing development.

The boy was one of four people found in a third-floor apartment in the building on Loring Avenue Thursday night, in the Pink Houses development, officials said.

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Firefighters found the child unconscious in a back bedroom, officials said.

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The other three in the home were able to escape the flames, officials said.

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The cause of the fire was under investigation late Friday.