A 23-year-old man has been arrested on suspicion of robbing a Next store just before Christmas while dressed as Santa.
The man went into the staff section of the shop in Oxford Retail Park, Cowley.
He threatened a member of staff with a knife and demanded cash from the shop's safe.
Once this had been given to him the man then made off on a bicycle towards Blackbird Leys Bridge.
The man has been bailed until May 21 for the robbery which took place on December 23.
Anyone with information about the offence should contact Det Con Tom Mansfield at Thames Valley Police on 101 or, if you wish to remain anonymous, call Crimestoppers on 0800 555 111.
A cash reward is being offered for information about the incident.
Police are appealing for witnesses after a cyclist died in Oxford this morning.
The cyclist and a Nissan Micra were involved in a crash in Watlington Road at the junction with Garsington Road in Cowley.
Thames Valley Police were called at 5:41am but sadly, he died at the scene.
A 29-year-old man has been arrested on suspicion of dangerous driving and is currently in police custody.
Police are calling on anyone who may have seen the crash to contact Thames Valley Police Enquiry Centre on 101.
Exactly 107 years ago the man who created the Mini car was born. Today, to mark the event, a new model was unveiled at the Cowley factory.
The stakes are high for the workers at the Oxford site, with hundreds of jobs dependent on its success. BMW - which owns Mini - says it will invest £750m in the car up until 2015. Divya Kohli reports.
Why is it some industries attract boys and others girls....? There are many more men in technology jobs than women - and some of our primary schools don't have any male teachers at all. Heather Edwards reports.
Prime Minister David Cameron has congratulated Mini makers BMW as the company marked the 100th anniversary of carmaking at Oxford.
It was on March 28, 1913 that the Cowley plant at Oxford produced its first car - the Bullnose Morris Oxford.
Mr Cameron said: "The Government is working closely with the automotive industry so that it continues to compete and thrive in the global race, and the success of Mini around the world stands as a fine example of British manufacturing at its best.
"The substantial contribution which the Oxford plant has made to the local area and the British economy over the last 100 years is something we should be proud of."
The Cowley plant has produced more than 11 million vehicles in its 100 years.
One hundred years of car making is being celebrated at Cowley in Oxford this week.
The one hundredth anniversary of car manufacturing at the BMW / Mini plant in the town is on Thursday 28th March 2013. It all started with one man and his passion for motor cars. Reshma Rumsey looks back at a century of car manufacturing.