A group of investigators, made up of criminalists and medical experts, have reached the fourth section of the rescued Kursk nuclear powered submarine. The group is looking for the submariners' bodies, said Vladimir Navrotski, public relations chief of the Northern fleet. Earlier, eight bodies were retrieved from the sub's ninth section. The October 26 plan of work intended opening the sixth reactor section and getting into it. So far, the group has not. Now preparatory work is under way to ensure 100-percent safety for the specialists seeking entry into the reactor section.