Mining officials continue to investigate the weekend death of a worker at an underground coal mine in southern West Virginia.

A spokesman for the Office of Miners' Health, Safety and Training identified the victim as 53-year-old Robert D. Fraley of Dorothy.

Fraley's body was found Sunday at the bottom of a 300-foot mine shaft at the Mountain Laurel Complex near Sharples, which is close to the Logan-Boone county line. The mine is owned by the Mingo Logan Coal Company, a wholly owned subsidiary of Arch Coal of St. Louis.

State Police Trooper J.E. Williams says a co-worker noticed Fraley wasn't in the area he was supposed to be in and a search was started.

The state Division of Homeland Security and Emergency Management was notified of the death at 8:31 a.m. Sunday.

According to the U.S. Mine Safety and Health Administration, this is the fifth coal mine fatality in West Virginia in 2007, and the 25th nationwide.