Less than two weeks after the death of an Oak Park Heights Prison officer in the line of duty, five staff members have been injured following two incidents at the facility on Friday morning.
The separate assaults happened within the space of an hour and triggered a lockdown at the prison.
In the first incident, two officers were wounded while responding to a fight between two prisoners, while an additional three officers were hurt dealing with an offender who was "resisting staff," FOX 9 reports.
The station says the incidents are "the third and fourth reported inmate assaults on staff members" at Oak Park Heights this year.
All the staff members from Friday's assaults were taken to the hospital and later released, according to KSTP.
The incidents follow a rash of inmate assaults not only at Oak Park Heights, but also at a number of other Minnesota prisons – two of which have led to the deaths of corrections officers.
The first to die was 45-year-old Joseph Gomm, who was attacked at Stillwater prison in July by an inmate serving a 29-year homicide sentence. Gomm had received "substantial injuries to his head and face."
The second was 37-year-old Joseph Parise, who suffered a medical emergency after responding to an inmate assault on another corrections officer at Oak Park Heights.
Friday's incidents are now under investigation.