A predawn helicopter crash during training exercises Saturday at this desert post killed six soldiers and injured one other, Army officials said.

The soldiers were aboard a UH-60 Blackhawk helicopter when the aircraft went down at about 4 a.m. 14 miles northeast of Fort Irwin's main garrison, said Maj. John Wagstaffe.All the soldiers involved were from the First Cavalry Division based in Fort Hood, Texas, said Wagstaffe. They were at the 1,000-square-mile base 120 miles northeast of Los Angeles for a three-week training exercise that ended Saturday.

Wagstaffe said no other aircraft was involved in the crash, whose cause was being investigated. The identities of the victims were not immediately available, and likely would not be released until Sunday or Monday, he said.

The injured soldier suffered a broken right leg and a bruised lung, and was listed in stable condition at Loma Linda Hospital in San Bernardino, Wagstaffe said.