Two masked robbers raided a Kingswood shop stealing cash, tobacco and alcohol.
During the burglary, the thugs attacked a member of staff who was left shaken but uninjured.
Detectives have now launched an investigation and are appealing for witnesses to come forword.
A spokesman for Avon and Somerset Police confirmed the raid occurred at 6:20am this morning (16 December).
He said: "Two people went into Central Convenience Stores in Pound Road and assaulted a member of staff.
"They stole cash from the till along with tobacco and alcohol, which they loaded into a heavy-duty plastic bag.
"The member of staff was shaken but uninjured.
"The first offender is described as male, white, about 5ft 8ins and of slim build. He was wearing a woollen black balaclava over his face with holes for the eyes and mouth, as well as a black waterproof short coat, a dark blue and purple checked scarf, grey jogging bottoms tucked into white socks, white trainers and black gloves. He had a local accent.
"The second was female, white, around 5ft 10ins/11ins, of skinny build and she was wearing an identical balaclava, grey joggers tucked into white socks and white trainers. She also had a local accent.
"If you saw any part of this incident, or have any information about the identity of the offenders, please call investigations on 101 and give the call handler the reference number 5219288978."
