BOISE, Idaho (AP) — Authorities say a woman sustained potentially life-threatening injuries after she was beaten and stabbed in the Boise foothills late Saturday night.

The sheriff's office says the 20-year-old woman reported that she knew her attackers, and that the group beat her, stabbed her with a knife and a broken bottle and then left her on the side of the road in the foothills just north of Boise city limits. The woman managed to walk to a nearby home for help after the attack.

The Ada County Sheriff's office arrested four people Monday in connection with the case. The sheriff's office says Cody C. Baker, Justice M. Bowie, Kevin M. Ivey and Brianna Brown are charged with aggravated battery; they have not yet had a chance to enter a plea.

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