A spokeswoman for the Mining Safety and Health Administration says workers are searching for the bodies of two men who were buried in mud and slush at a gravel pit in southern Mississippi. Amy Louviere said work resumed Sunday morning at 9 a.m. She said the effort has changed from a rescue to a recovery operation. Approximately 25 people are on site looking for the men. The two men were operating heavy equipment for Green Brothers at a pit in Crystal Springs on Friday when they were completely buried in 10 to 12 feet of mud, slush and sluice.