U.S. Black Hawk helicopter crashes off Yemen coast | 26 Aug 2017 | A U.S. Black Hawk helicopter crashed off the coast of Yemen on Friday during training, with a search underway for one U.S. service member, the U.S. military said. U.S. Central Command said in a statement that five other service members aboard the aircraft had been rescued and the crash took place about 20 miles (32 km) off the southern coast of Yemen at 7 p.m. local time on Friday.