LONGVIEW, Wash. (AP) — A large wind-driven fire at a wood products company in southwestern Washington has engulfed the site and prompted an air quality advisory for the region that is expected to last into at least Tuesday.

Authorities say someone passing by Sunday afternoon reported a fire at Swanson Bark and Wood Products in Longview.   Arriving firefighters encountered a large pile of bark dust burning and spreading to other piles. Authorities say additional fires in the Longview area, strong winds, visibility issues due to smoke and challenges in accessing the piles created difficulties fighting the blaze.

The fire was out as of about 4 a.m. Monday but dozens of wood piles continue to smolder.