An unintentional roof fall occurred on the 1st E. sub-main, off 4th N. sub-main on 004 unit #6 entry at spad #13+60. This roof fall was located in an intersection and was supported with 10' point anchor roof bolts. The fall measured 25' in length by 18' in width and 14' in thickness. The roof fall will be cleaned up and the area will be re-supported.