Great Plains Correctional Facility, Hinton, Oklahoma
July 10, 2017

Armed with baseball bats and iron pipes, 400 prisoners take control of an entire building and two recreation yards for eight hours. Taking two guards hostage, they refuse to return to their cells. Guards use pepper spray and stun grenades. An unspecified number of prisoners are transported to a local hospital for injuries.

Citations:

Inmates take 2 guards hostage in Oklahoma prison riot before officers gain control“, Fox News Oklahama, July 10, 2017.

“Inmates take guards hostage in Oklahoma prison, officials say”, CBS, July 10, 2017.