LONGVIEW, Washington (From The Daily News) -- Longview firefighters extinguished a fire at Weyerhaeuser Co. Sunday that shut down a hog fuel conveyor.

Crews were dispatched to the pulp mill after a fire sparked on the hog fuel conveyor delivering bark dust to Weyerhaeuser's adjacent Norpac pulp mill, Longview Fire Battalion Chief Troy Buzalsky said Sunday. Cowlitz 2 firefighters assisted at the scene.

Firefighters had to wait for the conveyor and electrical systems to be shut down before attending to the flames, Buzalsky said. The fire was initially difficult to find due to smoke engulfing the conveyor tunnel, he said.

Once found, the apparent flames were quickly extinguished. Fire crews spent another two hours dousing hot spots burrowed deep inside the bark dust, which was inside a remote area in the conveyor tunnel, Buzalsky said.

The fire was not in danger of spreading to other parts of the building, Buzalsky said. No injuries were reported.

Buzalsky said the fire was likely caused by a hot bearing.

Weyerhaeuser spokesman Anthony Chavez said the fire was minor and caused only a temporary interruption. Both pulp mills at Weyerhaeuser and Norpac are "up and running," he said Sunday afternoon.

Electrical wires and part of the walls and ceiling incurred damage, Buzalsky said.

A damage report was unavailable Sunday, but Chavez said the property damage was minimal.