A South Dakota woman who had been missing for eight days showed up Sunday at Chadron Community Hospital in Nebraska with significant injuries that she said were the result of being repeatedly sexually and physically assaulted.

The 21-year-old woman said the assaults happened at a Chadron hotel, according to a statement issued Monday by the Nebraska State Patrol.

A 33-year-old man, Jesse Sierra, from Rapid City, South Dakota, was arrested in the case Sunday in Chadron on suspicion of first-degree sexual assault and first-degree assault.

Sierra was transported to Scottsbluff for holding in the Scotts Bluff County Detention Center Sunday evening. The Dawes County Sheriff’s Office and Rapid City Police Department have also assisted in this investigation.

Brendyn Medina, spokesman for the Rapid City Police Department, said authorities are still investigating the case, including whether the woman had been held against her will since she disappeared.

The woman was last seen leaving her Rapid City hotel job on Saturday, July 13. She did not arrive home that evening and did not show up for a family function the next day.

Video from the hotel showed that she left the building alone, via an employee door, Medina said.

Chadron police, the Dawes County Sheriff's Office in Nebraska, the Nebraska State Patrol and South Dakota law enforcement are investigating the case.

We're always interested in hearing about news in our community. Let us know what's going on!