The U.S. military has moved about 130 soldiers along with mobile rocket launchers to a desolate island in the Aleutian chain of western Alaska amid a recent increase in Russian military planes and vessels approaching American territory.

Rapper-turned-actor Chris "Ludacris" Bridges sparked concern from some social media followers when he knelt on an Alaska glacier, dipped an empty water bottle into a blue, pristine pool of water and drank it.

Two climbers awaited rescue near the peak of North America's tallest mountain Wednesday, a day after they and a third climber in their team requested help after summiting Denali during the busiest time of the mountaineering season, officials at Denali National Park and Preserve said.