Staff at a Post Office in Banbury were left distressed after an armed robbery, according to police.
A man entered the Easington Post Office and threatened staff with a knife, telling them to open the till, at around 11.45am on Friday (March 15).
When they did not comply, the offender grabbed the till and left the shop on Horton View.
The offender is described as a white man, wearing a grey hooded top and grey tracksuit bottoms and had a scarf covering his face.
Detective Constable Steve Perry said: “This was a distressing incident for the staff involved. I would urge anyone who may have any information about the incident to please come forward."
A Post Office spokesman said: "The people who run our Post Office branches provide important services to local communities.
"This type of crime is very traumatic for the retailer and we will be supporting the police in their efforts to apprehend those responsible.
"Post Office would urge anyone with information to contact the police or Crimestoppers anonymously on 0800 555111."
Anyone with information that could assist the investigation should call 101, quoting reference 43190079720.