As reported on U.K. Cav-ng 😮
http://www.npr.org/templates/story/story.php?storyId=320254813&ft=1&f= The man, whose name wasn't released in keeping with German privacy rules, had suffered head and upper body injuries a day earlier. One of his two uninjured companions made a 12-hour climb back to the cave entrance to alert authorities, while the other stayed with him.
The injured man is nearly 1,000 meters (3,300 feet) underground "in one of the most difficult caves in Europe," mountain rescue official Klemens Reindl told n-tv television.
"We have shafts that go straight down 350 meters (1,150 feet), where you have to rappel down and climb back up on a rope," he said. The cave system has tight spots where only a slim person can squeeze through, and explorers also have to contend with water, the mountain rescue service said.
No idle speculation please.