2 miners were loading equip into a loader bucket when a section of the roof fell on them. One was pinned in the loader bucket & the other was able to free himself & drive them both to the surface. Approx area that fell was 18"" wide, 1' thick, 6'long. Both miners were flown to the medical ctr, 1 released same night w/bruises, the other has several broken bones & lacerations.