A robber threatened staff at gunpoint at a betting shop in Leeds.
The "frightening" robbery at the William Hill bookmakers in Beeston Road, Beeston, happened at 8.10pm on Monday. (March 20)
A man burst into the premises, demanding money, and threatened a member of staff with a gun.
The worker managed to lock themselves in another room, where they called police.
Then the robber fled the scene empty-handed.
Detective Inspector Amanda Wimbles of Leeds CID, said: "This was a very frightening incident and I would like to appeal directly to any witnesses to come forward."
Any witnesses to the incident are asked to call police on 101 quoting log 1672 of Monday March 20.