Several Stillwater prison staff members were taken to the hospital Thursday following an incident that put the facility into a lockdown, Minnesota Department of Corrections officials said. “Several staff were taken to the hospital out of an abundance of caution,

Minnesota Correctional Facility - Stillwater, the state's largest prison, is on temporary lockdown after several staff members were possibly exposed to synthetic drugs on Thursday.

Nine employees at Minnesota Correctional Facility–Stillwater were taken to the hospital on Thursday after being exposed to a "stronger-than-expected" dose of synthetic marijuana being smoked by an inmate,