HELENA, Okla. (AP) — The Department of Corrections locked down a northwest Oklahoma prison and transferred more than a dozen inmates after skirmishes erupted this week that left four inmates wounded.

The agency said in a news release Friday that two inmates at the James Crabtree Correctional Center were treated and released from a nearby hospital after suffering puncture wounds. Two others were treated at the facility's medical unit. The medium-security prison holds nearly 1,200 inmates and is located in Helena, Oklahoma, about 120 miles (193 kilometers) northwest of Oklahoma City.

The agency'...