CBS 58 CUDAHY, Wis. (CBS 58) -- A Cudahy High School staff member is under arrest and now the Federal Bureau of Investigation (FBI) is taking over.
The district confirms the person worked at the high school but won't share many details at this time.
The FBI is taking over, and CBS 58 is trying to figure out what led to the arrest.
The district says the employee is no longer in the building and students and staff are safe.
This story will be updated once more details are confirmed.