A masked man armed with a shotgun stormed into Elm Village Store near Wisbech and demanded money from the till last night.
He threatened a member of staff at around 7.50pm before leaving the scene, in Birch Grove, with about £300 in cash.
The man is described as being roughly 5’10” and having a local accent.
He was wearing a grey and white mask, dark blue hooded top and was carrying a sports bag.
Detectives are keen to speak to a woman who briefly entered the shop while the incident was happening and may have vital information.
Inspector Will Davis said: “This was a frightening experience for the victim; thankfully nobody was hurt.
“I’d urge anyone who was in the area at the time and may have information to contact us or Crimestoppers as a matter of urgency.”
Anyone with information regarding this incident should contact police on 101, call Crimestoppers, anonymously, on 0800 555 111 or visit https://crimestoppers-uk.org/
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