Lac-Megantic, July 7: At least 80 people are missing after a driverless oil tanker train derailed and exploded in the small Canadian town of Lac-Megantic, destroying dozens of buildings, a firefighter back from the scene has said.

The accident in the small Quebec town, located around 250 kilometers east of Montreal yesterday, created a spectacular fireball and forced 2,000 people from their homes.

Officials earlier only confirmed one fatality, but had warned the toll could rise. A search for bodies was to begin today at dawn.

The firefighter said on condition of anonymity that there had been at least 50 people in one bar that was consumed by the flames.

"There is nothing left," he said.

Witnesses reported as many as six explosions after the train derailed at about 0520 GMT in Lac-Megantic, a picturesque resort town of 6,000 residents near the border

with the US state of Maine.

Michel Brunet, a spokesman for Quebec's provincial police, said late yesterday the official death toll remained at one but added: "We expect there will be more fatalities."

Radio-Canada had earlier reported that 60 people were unaccounted for in Lac-Megantic, where the blaze was still raging, 20 hours on.

"There have been several reports" from people who said they were unable to reach relatives who lived near the accident site, Brunet said.