One person died and another was critically injured at the scene of a Harlem apartment fire Friday, officials said.

The blaze broke out in the brownstone building on West 131st near Malcolm X Boulevard at around 2:50 p.m. and firefighters were still working to put it at 4 p.m., according to the FDNY.

Another person was seriously injured, the officials said. The victim’s cause of death wasn’t immediately clear Friday afternoon.