Butte-Silver Bow Police have a person in custody who they say crashed their vehicle through the front barricade in front of the Butte Silver Bow Jail around 8:30PM Saturday evening.
Tire marks stretch back at approximately 20 feet before impact was made.
A high rate of speed is determined to be a factor in the crash.
No injuries have been reported.
NBC Montana is looking into the accident and will have additional details as they become available.