A ROOF FALL OCCURRED AT APPROX 12:15 AM, AT SPAD #4936 IN #3 ENTRY & EXTENDED TO SPAD 4933 IN #4 ENTRY. NO PERSONS OR EQUIPMENT INVOLVED. FALL WAS OUTBY SECTION 004-0, 2500 FT. FALL WAS 4 TO 5 ' THICK, 20' WIDE & 65' LONG. AREA HAD BEEN BOLTED WITH 4' RESIN BOLTS. ADDITIONAL SUPPORTS & LONGER BOLTS BEING INSTALLED IN THIS AREA.