A man was killed in a Manhattan apartment fire Sunday morning, officials said.

The deadly flames broke out around 6 a.m. on the third floor of a six-story apartment building at Broadway and 204th Street in Inwood, fire officials said.

About 60 FDNY members battled the blaze, which may have been exacerbated by cluttered conditions, the FDNY said. The blaze was under control by 6:37 a.m.

The victim’s identity wasn’t immediately released. The cause is under investigation by fire marshals.