The gang of men, reportedly wearing balaclavas, was said by one source to have smashed windows into the Jewson's premises in Beaumont Road, Banbury around 11.30pm - midnight on Tuesday.
Police have confirmed the raid and asked the public for help. They say the burglary was reported to them just before 1am and that a quantity of tools and other machinery was stolen.
"We are investigating a burglary at the Jewson’s in Beaumont Road, Banbury, which occurred at some time between 11.30pm and midnight on Monday, December 5 and Tuesday, December 7.
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"We would ask anybody who has any information about this incident or who witnessed any suspicious activity overnight Monday into Tuesday, to please call 101, quoting reference 43210551807," said a spokesman.
"We would also ask anybody who was driving in the area between 11pm and midnight on Monday to check their dash-cam and contact the force if it has captured anything that may assist the investigation."
An unconfirmed report said the thieves forced the door open from inside with a digger while two men, wielding baseball bats kept watch as the others 'emptied the store' into a van and a 4 x 4.
We are investigating a burglary at the Jewson’s in Beaumont Road, Banbury, which occurred at some time between 11.30pm and midnight on Monday (6/12)/Tuesday (7/12).
It was reported to the force just before 1am on Tuesday.
A quantity of tools and other machinery was stolen in the burglary..