Montgomery, Al. (WSFA) -- It's being called one of the biggest property thefts ever in the capital city.
Someone stole five computer cards worth $200,000 from the local Sprint cell phone main office.
Police believe the theft was an inside job.
The cards that support the Sprint network locally are kept under lock and key.
Whoever took them had the right tools to do the job and not leave any clues behind.
Officers say the thieves knew exactly what they were doing.
The cards have no real street value and they don't contain copper or anything that could be used for resale.