Drivers scrambled to grab money flying around a Maryland highway after an armored truck's door burst open.

Maryland State Police say a lock on the truck seems to have malfunctioned, causing the door to open Friday morning. A bag of cash fell onto the road and the bills flew in the air.

Police say a number of drivers stopped on the interstate and grabbed what cash they could before a fire department vehicle arrived and turned on its emergency lights.

Responding troopers were able to help the truck's driver recover about $200. It's not known how much cash was lost.

Police urge the drivers who took the cash to return it to the state police barracks, or else face charges of theft if they're found.