MARTIN COUNTY ― Southwest Martin Highway closed for nearly four hours after a fire erupted on a Tractor Trailer and caused 4,000 gallons of sludge to spill on Southwest Martin Highway Tuesday, according to Martin County Fire Rescue.

What Happened: The tractor trailer caught fire, which caused 4,000 gallons of sludge to spill on Southwest Martin Highway near Southwest 72nd Avenue around 6:30 a.m., said Cory Pippen, a spokesperson for Martin County Fire Rescue.

The contents spilled were liquid lime sludge, used for agricultural recycling, Pippen said.

No crash occurred, but the truck was engulfed in flames. The blaze’s origin was a brake fire that spread to the rest of the tractor trailer’s tank, Pippen said.

No injuries were reported from the fire.

Road reopened: Martin County sheriff’s deputies reopened the road around 10:19 a.m., said Laurie Weber, a sheriff’s spokesperson.

DEP on scene: The Florida Department of Environmental Protection arrived on scene for the spill, Pippen said.

Exposure to liquid lime sludge could cause skin and eye irritation.

The company who owned the truck would take care of cleaning up the spill, Pippen said.