Arizona Prison on Lockdown After Inmate Fight

A fight broke out Wednesday among more than 100 inmates at an Arizona prison, injuring threeinmates and a corrections officer, a corrections official said.

The officer suffered bumps and bruises, and one of the inmates who had a head injury was flown to aPhoenix hospital, said Arizona Department of Corrections spokesman Barrett Marson. The prisonwas on lockdown, he added.

He said no one suffered life-threatening injuries, and that no weapons were used in the fight.

Marson said the fight broke out around 9a.m. in a high-security unit of the Lewisprison complex west of Phoenix, and thatit was mostly in the recreation yard andthe kitchen.

He said the reason why the fight brokeout was under investigation.

The Lewis prison near Buckeye was thesite of what is believed to be the longestprison standoff in U.S. history.

In January 2004, two inmates took two correctional officers hostage, resulting in a 15-day standoffbefore they surrendered. It occurred after officers in the prison's kitchen were overpowered by twoinmates, and one officer allowed one of the inmates -- disguised in a uniform taken from anoverpowered officer -- into the prison tower.