POCATELLO - A 19-year-old man is due to be sentenced in August after pleading guilty to federal charges in a drunken driving crash that killed two people on the Fort Hall Indian Reservation.

Prosecutors said 19-year-old Ruben Wounded Head III drank a bottle of rum before plowing his pickup truck into an oncoming sport-utility vehicle in November 2015, killing both of the SUV's occupants. Wounded Head was driving about 60 mph in a 45-mph zone.

He pleaded guilty Friday in U.S. District Court to two counts of involuntary manslaughter.

He faces up to eight years in prison when he's sentenced Aug. 2.