Cash was stolen from a van parked outside a Kettering Chinese restaurant.
The theft happened at about 3.35pm last Friday, April 5, in the car park of the Beijing Palace restaurant, off Stamford Road.
A thief broke into the van - displaying the name of London firm Cook’s Delight - and stole a considerable amount of cash.
Witnesses, or anyone with information, are asked to phone Northamptonshire Police on 101. Alternatively, information can be given anonymously to Crimestoppers on 0800 555 111.