Thames Valley Police is appealing for witnesses following a robbery in Aylesbury.
It happened at around 3.45pm yesterday (10/6) in the Subway franchise in Market Square.
A man entered the store and made threats to the victim, a woman in her twenties, and then punched her.
He took money from the till and left.
The woman sustained reddening to the face but did not require hospital treatment.
Investigating officer Detective Constable Jemma Tamplin of Force CID in Aylesbury, said: “We would like to speak to anyone who was in the area at the time of this incident.
“The victim in this case was fortunately not seriously hurt, but she is very shaken by incident.
“We have started a thorough investigation to establish what happened.
“If you have any details which could help with this case, please get in touch.”
Please contact Thames Valley Police on 101 quoting reference 43190174963 or make a report online.
If you do not wish to speak directly with police, you can call the independent charity Crimestoppers 100% anonymously on 0800 555 111.
Notes to editors
A man, aged 30, from Aylesbury was arrested on suspicion of robbery and remains in police custody at this time.