US-based Alpha Natural Resources has announced that a worker has died following a rock fall at its Kingston Mining No 1 coal mine in Fayette County, West Virginia.

The section of the mine where the accident occurred has been closed and state and federal mine investigators have been dispatched, the company said.

Kingston Mining No 1 coal mine has not experienced a fatality in its 15-year history, Alpha added.

Alpha Natural Resources acquired Kingston Mining as part of its acquisition of Foundation Coal Holdings in 2009.