In June 2001, Deep Ocean Expeditions, partnered with Woods Hole Oceanographic Institution, conducted another investigation of the wreck. The researchers used Russian-built mini-submarines. William N. Lange, a Woods Hole expert, stated, "You see a large number of shell holes in the superstructure and deck, but not that many along the side, and none below the waterline."[146] The expedition found no penetrations in the main armoured belt, above or below the waterline.