SALT LAKE CITY (AP) — Four men have been arrested for sexually assaulting a 9-year-old girl in a Utah home while her mother was in the garage smoking meth, authorities said Monday.

The girl's mother left her sleeping on a couch March 27 inside a home in rural Uintah County, which borders Colorado, the Uintah County Sheriff's Office said in court documents.

The four men were staying at the home and took the child into another room, where they assaulted her, investigators said. When her mother returned, the child said she wanted to leave.

Two days later, the girl told her mother about the assault, deputies said. The woman then reported it to police.

The sheriff's office identified the men as 36-year-old Larson RonDeau, 20-year-old Josiah RonDeau, 29-year-old Jerry Flatlip and 26-year-old Randall Flatlip.

The men did not have listed phone numbers, and it didn't appear any of them had a lawyer who could comment on their behalf.

Larson RonDeau, the first to be arrested, was charged Friday with rape and sodomy of a child. His initial court appearance is scheduled for Tuesday in the town of Vernal.

The other three men were arrested several days later. Uintah County Attorney G. Mark Thomas said Monday he expects similar charges to be filed against them in the next few days.

State child welfare officials have taken custody of the girl. Uintah County officials said they had no information on the child's father.

Thomas said the child's mother has not been arrested, and any possible charges against her would come after officials finish reviewing the cases against the four men.

Investigators said in court documents the men might be related, but Cpl. Brian Fletcher, a sheriff's spokesman, said he had no details about that Monday.

He said the men are not from the area and investigators don't believe they've been there long.

The mother told deputies she was friends with a woman who might have been related to some of the men. The mother met the woman during a past stay in jail, deputies said.

Fletcher said he couldn't comment on the mother's criminal history or explain why she hasn't been arrested, noting officials are still investigating.

He said he could not offer further details Monday.