New images of a man wanted in connection with two robberies in Blackpool have been released.
Detectives are trying to trace 27-year-old Peter James Thomas, who they want to speak to following two raids in Grange Park and South Shore, as well as further incidents in Preston and Manchester.
Sgt Mark Dickinson, of Blackpool CID, said: “We would like to trace and speak to him.
“I would appeal to anyone who sees him or knows where he might be to get in touch with us.”
In the first incident on Friday at the NISA shop, on Easington Crescent, Grange Park, a man produced a note to a worker telling him he had a weapon and demanded cash.
The worker then shouted for their boss, at which point the man grabbed the note and fled empty handed.
Around 25 minutes later a similar incident occurred at the Royal Bank of Scotland, on Bond Street, South Shore, where a raider again produced a note with similar demands. He made off with £800 in that instance.
Lancashire Police are also set to liaise with other forces on an unconnencted armed robbery in St Annes at 9.10am on Saturday.
The robber, armed with a kitchen knife, entered Thomson travel agents, on Park Road, before demanding cash from shocked staff, including a pregnant woman.
The raider fled with around £2,500 in Euros and US dollars, and then is believed to have run off down an alleyway opposite the shop.
Police think the man was wearing surgical gloves and are also appealing for anyone offered those currencies in exchange for sterling to come forward.
He is described as white, in his 40s or 50s, 6ft tall and of slim build.
He had a scruffy appearance and may have been wearing glasses.
Passengers on the train bound for Blackpoool South, which arrived in St Annes at 9.05am, are also being sought as it is believed the offender may have been aboard before carrying out his attack.