A diesel spill briefly endangered a town's water supply.

The Department of Environmental Protection sent an emergency response unit to the scene.

Authorities said the accident occurred when a tractor-trailer driver blacked out as he was passing another northbound tractor-trailer. His truck side-swiped the truck he was passing. Both trucks went over an embankment and then caught fire.

Sixty-one-year-old Gerald Lowery of Cedar Lake, Indiana, regained consciousness after the impact and was able to escape the fire. The driver of the other truck was killed, 57-year-old Robert McCallin of Berkeley Springs.