Thieves are slowing down the Kansas and Oklahoma Railroad.
Railroad officials say engineers discovered huge packs of batteries stolen out of two of its locomotives on Monday. The thefts occurred while the engines were sitting in the company's rail yard.
Railroad spokesman Jimmy Patterson says each case is worth $8,000 to $10,000.
KAKE-TV reports the same thing happened to the railroad in January, when someone stole the 300-pound batteries from locomotives at night.
Patterson says it not only stops the railroad's work but also leaves employees at a standstill until the batteries can be replaced.