Shop staff were left shaken after being threatened by armed robbers in Halstead, Essex.
Four men - armed with a crowbar and hammer - walked into the Co-Op on Abels Road at around 8pm yesterday (17 January).
They forced staff to open the office safe and stole a four-figure sum of cash, before fleeing.
The men are described as wearing all black. Their faces were covered by scarves.
Police carried out a search of the area, but they could not find the suspects .
Officers are investigating whether it is linked to other robberies the Braintree district in recent months.