From U.S. Attorney for the District of Montana

GREAT FALLS — A man admitted Wednesday allegations that he assaulted a woman, causing serious injuries, on the Rocky Boy’s Indian Reservation, Acting U.S. Attorney Leif Johnson said.

Kelcey James Morsette, 31, pleaded guilty to assault resulting in serious bodily injury. Morsette faces a maximum 10 years in prison, a $250,000 fine, and three years of supervised release.

Chief U.S. District Judge Brian M. Morris presided and set sentencing for June 2.

Morsette was detained.

The prosecution said in court documents that Morsette was high...