A CO-OP store in Arborfield has been targeted by thieves armed with a drill and a sledgehammer.
They struck in the early hours of Thursday, May 18.
Thames Valley Police believes the raid was carried out by a gang of three men.
They smashed the doors of the Bramshill Close store using power tools, gaining access.
However, it is not yet known what was taken.
Now police are appealing for anyone with information to come forward.
A spokesperson said: “Thames Valley Police is appealing for witnesses to a business burglary, which occurred in the early hours of this morning.
“A number of offenders, believed to be three males wearing balaclavas, have broken into the Co-operative Store in Bramhill Close, Arborfield, using a black vehicle, believed to be a Mitsubishi, with no registration plates.
“The offenders have attacked the doors using a crowbar, sledgehammer and drill before entering the store.
“Nobody was injured in the incident and it is not currently known what was stolen.”
They added: “It is possible that the offenders spoke with Irish accents, but no other description is available.”
A spokesperson for Co-op, said: “There was an incident at our Arborfield store in the early hours of this morning (Thursday, May 18) when intruders broke in to the store.
“Nothing has been taken, and we would like to thank the Police – who are investigating – for the speed of their response.
“We also appeal for anyone who may have seen or heard anything to come forward.
“The store remains closed temporarily and expects to re-open later today to serve the community.”
Anybody who witnessed the incident or who may have dash-cam, doorbell footage or CCTV images of the incident are urged to contact Thames Valley Police on 101, quoting reference 43230217011.