By By Dan Hounsell

A fire at Rockland County, N.Y., assisted living facility killed one of its residents on Tuesday, and authorities say one firefighter is missing, according to NBC New York. The missing firefighter made a mayday call, but other first responders were not able to get to him due to the intensity of the blaze, Rockland County fire and emergency director Chris Kear said.

The fire at Evergreen Court Home for Adults started around 1:40 a.m. One person who was transported to the hospital has died, according to the fire department. Between 20 and 30 residents in the 200-bed facility were rescued, though authorities still don't know for sure how many people were actually in the building when the fire broke out.

It's still unclear what started the fire but the flames were so destructive that they collapsed the second floor of the nursing home. The fire department later said the building is a total loss.