£750 in cash was stolen during a fourth break-in within four months at an East Cambridgeshire shop that had a £525,000 refurbishment last year.
Police were called to the suspected break-in at the Co-op in Cottenham on Sunday morning at 1.16am.
On arrival, officers found entry had been forced and a self-service till had also been broken.
This isn't the first time the store has been broken into: in April, ram raiders stole a cash machine, in June a shoplifter assaulted a member of staff and, in July, burglars stole a cash box.
The latest investigation is ongoing.
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