A man has been arrested after vehicles were hit with eggs as they travelled down the A418.
Four vehicles were hit – and their drivers potentially distracted – at around 6.45pm on Tuesday, August 4, as they travelled between Thame and Aylesbury.
A 23-year-old man from Bampton in Oxfordshire was arrested on suspicion of criminal damage and released on police bail.
Police say they wish to speak to anyone whose vehicle was hit or damaged in the incident.
Anyone with information is asked to contact PC John Belson via the police enquiry centre on 101.
Alternatively, contact Crimestoppers anonymously on 0800 555 111.