MONTREAL--One of the men who was badly burned by an explosion last week in the Eastern Townships has died.

Bombardier Recreational Products confirmed Monday that Sebastien Tardif, 38, had succumbed to his injuries.

Tardif and a security guard in his fifties were hurt Thursday night by an explosion at BRP's research facility in Valcourt. Both men were taken to the burn unit of l'Hopital de l'Enfant Jesus de Quebec.

Tardif is survived by his two children.

He was a dynamometer operator in the research lab, where BRP creates and tests Ski-Doos, Sea-Doos, and other vehicles.

"Our thoughts are with the family and friends at this difficult time," said Vincent Morin, vice-president of Product Development, in a written statement.

The reason for the deadly explosion during the night shift at BRP is still unknown.

On Thursday there was another large explosion in nearby Sherbrooke at a nutraceutical plant. That blast killed three people and injured 18.

--with files from The Canadian Press.