Discuss as:

Arizona prison battle: Unit put on lockdown after 200 inmates fight

About 200 inmates at an Arizona prison fought each other for up to a half hour Thursday, injuring several inmates and a guard, correction officials said.

A joint report by NBC station KPNX and The Arizona Republic said that the fight meant a unit at Arizona State Prison Complex-Tucson would be on lockdown for several days while authorities investigate, according to officials.

The fight broke out at 5:30 p.m. local time (8:30 p.m. ET) in the Santa Rita Unit yard, Bill Lamoreaux, an Arizona Corrections spokesman said, according to the report. Tactical Support Unit teams and prison personnel regained control of the yard within a half hour.

Reuters reported that officers secured the yard without the use of force. 

The prison staff member who was hurt suffered an injury to the ribcage, Lamoreaux added.

The prison complex has 5,150 beds, while the Santa Rita Unit has 768 beds, 727 of which were occupied Thursday.

13 inmates hurt, shots fired during 'New Folsom' prison riot

On Wednesday, a prisoner was shot and injured and 12 others were hurt when 60 inmates rioted at California State Prison-Sacramento – known as "New Folsom." 

Thirteen people were stabbed, shot or injured in a prison riot in Folsom, Calif., sparked by a dueling group of inmates. KCRA's Mike TeSelle reports.

Guards fired six bullets from a rifle and blast dispersion rounds during their efforts to stop the fighting.

Reuters contributed to this report.

More content from NBCNews.com:

Follow US News from NBCNews.com on Twitter and Facebook