PORTLAND, Ore. (AP) — An Arizona man was sentenced to eight months in federal prison for assaulting another inmate by touching the woman’s inner thigh and buttocks, according to court documents.

The U.S Attorney’s Office in Oregon said Tuesday that Kelvin Valentino McDuffie, of Supai, Arizona, was also sentenced to one year of supervised release for the incident inside a prisoner elevator at the Hatfield Federal Courthouse in Portland, Oregon.

The assault happened on July 26 last year as McDuffie was being escorted by law enforcement with the victim and other inmates, KPTV reported. The inmates were separated by a metal chain-link screen and McDuffie was restrained with handcuffs and a belly chain, according to the attorney’s office.

McDuffie reached his fingers through the chain-link screen and struck the victim’s inner thigh and buttocks, the attorney’s office said. He was charged on Nov. 21, 2019 with assault and abusive sexual contact and pleaded guilty to charges earlier this year.

McDuffie was in the custody of the U.S. Marshals Service for allegedly violating supervised release imposed following a conviction for assaulting a federal officer in Arizona.