Updated

Four Marines were being held Wednesday on suspicion of raping an unconscious 17-year-old girl at a Mojave Desert motel, authorities said.

Sheriff's deputies went to a Motel 6 early Monday on a report of a rape. Investigators then went to the Twentynine Palms Marine Corps base, and on Tuesday detectives arrested the Marines, ages 18 and 19.

The girl was staying with friends at the motel and the Marines were staying in another room, said Chip Patterson, a Sheriff's Department spokesman. The Marines had never met the girl before and it was unclear what they were doing at the motel, he said.

"They got together with the victim and supplied her with alcohol and then sometime after that she lost consciousness," he said.

They were jailed on $100,000 bail each. It could not be immediately determined Wednesday if they were represented by attorneys.