A masked man made off with cash after robbing a bookmakers with an axe.
A 22-year-old man from Carterton was last night in police custody after the incident at the Coral in Wesley Lane on Thursday at about 8.30pm.
Thames Valley Police has said it is exploring whether the incident is linked to other business robberies in the county.
Officers described the robber as white and of medium build.
He had his face covered with a red scarf and was wearing a dark grey hooded top.
Anyone with information should call police on 101.