OSO, Wash. -

Some local workers citing safety concerns have walked off the job as the Washington Transportation Department works to clear a section of Highway 530 buried in muddy debris from the deadly Oso mudslide.

The Daily Herald of Everett reports that the workers are calling for the effort to slow down for safety and to allow them to better inspect the material for human remains and personal effects. The newspaper says several people walked out Sunday and more quit on Monday.

KING-TV says the workers report they were told to work in poor footing and even during violent weather like Sunday's thunder and lightning.

Transportation Department spokesman Travis Phelps confirms the walkout and says all safety complaints are investigated immediately. In this case, he says inspectors found the area to be safe.

The March 22 mudslide that buried dozens of homes also covered a section of the highway. The slide killed 41 people and left two missing.