Four people have been arrested following a robbery at a petrol station in Flintshire.
The incident happened at about 1850 BST on Monday at the Ewloe filling station, Holywell Road.
A small amount of cash was taken and a cashier was taken to hospital with minor injuries.
North Wales Police are studying CCTV and expect to make further arrests. Witnesses are asked to contact 101 if in Wales.
Alternatively, anyone with information is asked to call 0845 6071001 (Welsh language), or 0845 6071002 (English).