Mine fire occurred on P19 belt, between the new crusher and the sizer/transfer area. It started sometime between 4 am, 4-9-06 and 6 am, 4-10-06. The mine was empty at that time. Our investigation began @ 7:30 am. MSHA was notified by 9:30 am as a precaustion. A fire wasn't discovered until later after lunch time.