Authorities are investigating a fire that killed a 63-year-old man Gulf Coast man in his FEMA trailer.

The victim’s identity was being withheld pending notification of relatives. He died Thursday afternoon in the fire at a FEMA trailer park in Pascagoula.

At 5:04 p.m., Pascagoula firefighters got a call from a man who said he saw smoke coming from a vent outside the trailer on Lot 102. Smoke was also billowing from beneath the trailer, officials said.

When firefighters arrived, the windows were closed, the door was locked and had to be pried open, fire Inspector Todd McClung said.

“As soon as (firefighters) stepped right inside the trailer, they disappeared. The smoke was so thick, I couldn’t even see them, and I was right outside,” McClung said.

The fire likely started in the kitchen area, McClung said.

Coroner Vicki Broadus said the man appeared to have died of smoke inhalation. An autopsy will be performed on the body to determine the exact cause of death.