Officers from Devon & Cornwall Police are appealing for witnesses following an attempted robbery at an Exminster filling station on Sunday 4 March.
The incident happened between 6.20pm and 6.25pm at Matford filling station on Dawlish Road on the A379 in Exminster.
Detective constable Joanne Sargent said: “A man entered the station armed with a metal object. He demanded money from the shop assistant but left on foot when the assistant refused to hand anything over.
“The man is described as white, of a heavy build with black eyebrows, and was wearing a navy/dark blue jacket. He had his face covered by a dark scarf/balaclava.
“We are seeking witnesses to the incident. Were you present on the forecourt or did you see a man matching that description in the area around that time? If so please contact us via firstname.lastname@example.org or by calling 101 quoting crime number CR/018960/18.”