SUNNYSIDE, Wash. — Firefighters worked into the early-morning hours Thursday to extinguish a fire that destroyed a fruit processing warehouse about two miles north of Sunnyside.

The blaze, which started Wednesday about 7 p.m., engulfed a produce warehouse of Kinsey Farms, located near the corner of Scoon and Independence roads.

The tin and wood building, which was 6,000 square feet, burned until about

3:40 a.m. Thursday and took 28 firefighters from five

stations to manage.

A cause is underdetermined, but Yakima County’s fire marshal was investigating, said Capt. Bo Thomas of Lower Valley Fire District 5.

The Granger Fire Department assisted.

Although the building was a total loss, firefighters were able to save a cold storage facility connected by a conveyor belt. That prevented ammonia and other refrigeration chemicals from exposure to the flames, Thomas said.

Nobody was injured during the fire.