Detectives are appealing for witnesses and information following an assault in Berkhamsted.
The incident occurred in Berkhamsted High Street at around 3pm yesterday.
An 18-year-old woman has subsequently been arrested on suspicion of causing grievous bodily harm to a 29-year-old man.
The victim has been transferred to hospital with a facial injury, but his injuries are not deemed to be life threatening.

Pay as you go technology extended to nine further Chiltern Railways' stations
Crown Court backs Council decision to refuse private hire licen
Double win for Waddesdon venues at the Beautiful South Tourism Awards
Free Parking in Bucks car parks this Christmas
Bucks Healthcare urges masks and hand hygiene as winter bugs surge
Risborough Rangers Stadium Break-In Threatens Memorial Fundraising Efforts
Local author publishes second novel
Buckinghamshire schools take part in Dragons' Den-style green technology challenge











