Fire officials say a blaze in a Brooklyn apartment building has injured 40 people, four of them critically.

The New York City Fire department press office says firefighters got the call at 5:12 a.m. Sunday about a blaze in a four-story building at 510 61st Street in Brooklyn.

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Chris Korzekwinski at the press office says four of the injured are in critical condition with life-threatening injuries and four others are in serious condition. The rest had minor injuries.

He says the fire was brought under control at 7:27 a.m.

The cause of the blaze is under investigation.