Detectives investigating a series of armed robberies in Oxfordshire have released a CCTV image of a suspect.
The latest robbery took place at Ladbrokes bookmakers in Headington on Saturday, at about 1700 GMT.
The man threatened staff with a handgun before making off with an undisclosed sum of money.
Police said they were linking the incident to six other armed robberies that have taken place in and around Oxford since the beginning of December.
Two bus drivers, a taxi driver and a 24-year-old woman are among those who have been robbed at gunpoint so far.
In some of the previous robberies being linked, the robber has hit his victims.
Black handgun
Det Insp Simon Morton, leading the investigation, said: "The images from the CCTV camera are quite clear so we hope someone will be able to identify who this man is.
"I appeal to anyone who might recognise this man or has any information that could assist our inquiries to contact police immediately."
On each occasion a small black handgun was used, but no shots were fired.
Detectives believe the robber is an opportunist and lives locally.
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