Prisons statewide are on lockdown indefinitely after fights broke out at six facilities over the weekend, resulting in the death of one inmate and injuries to several dozen others, agency officials reported.

This is one of the only times, if not the only time, the Department of Corrections has gone on a statewide lockdown, a spokesman for the agency said Monday.

"Anytime you have violence breaking out from one corner of the state to the other and it’s kind of the same general groups and it’s linked back to kind of a central dispute or disagreement, that's an extremely serious matter, especially when it just blows up in a short frame of time," said Matt Elliott, a spokesman for the Department of Corrections. "I would say this is probably a pretty unique instance in the state's history."

Monday afternoon, officials had not yet released the name of the inmate who was killed, pending next of kin notification.