GEISMAR - A 6-year-old boy died in a fire Sunday afternoon while playing outside their home.

The Louisiana Office of State Fire Marshall said they responded to a fire near a home on Cornerview Road around 2:30 p.m. Fire officials said the child was "playing fort" on a flat-bed trailer in the front yard of the home with their two siblings, a 9-year-old and a 4-year-old. 

Fire officials said Monday that the children were playing at their relative's home, which is next door to their home. 

Geismar Volunteer Fire Department said the children were playing with a lighter, using it to start a "campfire" in their fort, which is how the fire started.

Fire officials said the parents were home at the time of the fire. The other children were not injured but the 6-year-old was trapped and died. 

No other details were immediately available.