An unintentional roof fall occurred on Unit #3 in Entry 1 at the 52+80 survey station. The fall occurred due to the roof strata broke at the anchor point. The fall area had been supported with 4ft. and 5ft. conventional bolts. The fall is approximately 40 ft. long, 20-25ft. wide and 0-5ft. high. The fall will be cleaned up and re-supported.