A fire that blazed through Red's Truck Sale in Olmito on Thursday afternoon is currently under investigation.
Brownsville Fire Chief Lenny Perez said it took firefighters about five hours to contain the tire fire near Merryman Road.
Perez estimates there were about 500 to 600 tires at the site.
He said the tires were petroleum based therefore acting as fuel for the fire.
The Texas Commission on Environmental Quality is now looking into the case.