Two British and two U.S. climbers were injured when they fell down a steep gully in the upper reaches of the 20,320-foot Mount McKinley on Thursday but could not be immediately evacuated to safety because of bad weather, the National Park Service said.

Park rangers and volunteers said they were attempting Friday to bring down the four injured climbers from two separate parties who fell down the gully known as the "Orient Express" for the large number of Asians who have perished there.