Two men threatened staff at a petrol station in Frenchay Park Road on Wednesday morning before stealing cash and police are appealing for information to find them.
The incident occured at approximately 2.45am and CCTV enquiries have been carried out.
Avon and Somerset police are looking two people they would like to speak to in connection with their enquiries.
One is a man (caught on CCTV below) of slim build who wore an olive green beanie hat and blue bandana to cover his face.
He had a black gilet and hooded top, grey mittens plus black jogging bottoms with an Avengers logo on. He also had a pair of white Nike N95 trainers.
A second man is of a large build, who wore a black Adidas hooded jumper with grey stripes on the arms, black Adidas tracksuit bottoms with white stripes and black Nike N95 trainers.
Anyone who witnessed what happened or can assist the police with their investigation is asked to call 101 and give reference number 5221034429.
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