LINCOLN, Neb. (AP) — Police say they’re unsure how thieves were able to remove a hefty air conditioning unit from the roof of Best Buy in Lincoln and hoist it down.

The Lincoln Police Department says a manager at Best Buy realized the unit was missing after the roof started leaking. Police say the unit was fully installed when it was taken sometime in early February, and that the suspects cut a copper to disconnect it.

Officer Katie Flood said the department hasn’t figured out what means were used to get the air conditioner off the roof of the business.

Police estimate around $5,000 in damage. Police say the air conditioning unit was likely sold as scrap metal.