A supermarket staff member was left with a head injury after armed robbers broke in and stole cash in Downley. 

Two men walked into the Co-op on Plomer Green Lane on Sunday morning at around 6.30am and assaulted the staff there before fleeing the scene with cash. 

One of the staff members had to go to hospital for treatment for a cut on his head. 

It is believed that one of the robbers had a gun. 

A Thames Valley Police spokesman said: "Officers are carrying out a thorough investigation and people may see an increased police presence.

"We would ask anyone who witnessed this incident to come forward and call 101 with information."