Wednesday morning was a busy one for workers at the Scott County bus garage.
When workers arrived before the sun was up, they discovered vandals had broken into dozens of school buses.
The doors of the buses were pried open on more than half the district's fleet.
Once inside the bus, officials learned the keys, which are kept in the ignition for convince, had been broken off in the ignition with the rest of the keys left on the floor board.
The buses are equipped with cameras. School officials looked through the tapes but because none of the buses were turned on, neither were the cameras.
The Scott County Sheriff Department is now investigating the crime.
In the meantime, school officials plan to change the policy of leaving the keys in the bus, and have started a search for a chain link fence.