(AP) — Searchers found another body in the debris from a massive landslide in Washington state, bringing the death toll to at least four.

Snohomish County Fire District 21 Chief Travis Hots said Sunday that crews were able to get out to the debris and found one body buried in the mud. At least 18 people remain missing.

Hots said emergency responders and technical rescue personnel found “no signs of life” as they scoured the area.

The 1-square-mile mudslide that hit Saturday morning also critically injured several people and destroyed about 30 homes.

The slide occurred about 55 miles north of Seattle.