BISMARCK -- Two separate staff assault incidents at the North Dakota State Penitentiary has led to the compound being put on lockdown Friday, Jan. 25, according to a release by the North Dakota Department of Corrections and Rehabilitation.

The release says the two assaults led to seven employees being seen by a doctor and treated for injuries. The incidents are still under investigation.

No in-person or video visitations will be allowed during the lockdown, which will be reassessed Monday, Jan. 28.