Police released new details Sunday about a fatal fire in Port Isabel.

The blaze killed 54-year-old John Schartel, said city police Chief Robert Lopez.

At 3:07 a.m. Saturday, dispatchers received a call about a trailer burning near the intersection of Bridge Street and Railroad Avenue. Firefighters extinguished the blaze.

A justice of the peace pronounced Schartel dead and requested an autopsy.

The fire remains under investigation.