Authorities say an inmate assaulted three staff members at the Tecumseh State Correctional Institution on Friday.
Officials with Nebraska's Department of Correctional Services say an inmate assaulted one staff member.
Authorities added that during the effort to restrain the inmate, he was able to strike two other staff members.
All three staff were treated for non-life-threatening injuries and released from the Johnson County Hospital.
This comes a week after TSCI was placed in a lockdown status due to threats of violence against staff.