Gwent Police are investigating a report of an assault in Wyebridge Street, Monmouth on Sunday 31 October.
Two men were reportedly travelling in a burgundy Ford Focus near to the Queen’s Head pub.
The passenger – described as a white man, around 5’ 10” tall, of slim build with short brown hair and a dark, scruffy beard – has reportedly got out of the car before chasing after the Ford Focus.
He was wearing a light tan coloured waterproof jacket, white t-shirt with a graphic on the front and dark brown Air Force trainers.
This man has then allegedly assaulted the driver, leaving him with a stab wound to the leg.
The driver is described as mixed race, around 5’ 10” tall, of medium build with short and wavy dark brown hair.
He was wearing a grey beanie, black jumper, dark grey hiking style trousers and Air Force One trainers.
The passenger has then re-entered the car and both men have left the area, heading towards the town centre, in the same car.
Enquiries are ongoing and police are appealing for anyone who was in Wyebridge Street between 1.30pm and 3.30pm, or has CCTV or dashcam footage, on Sunday 31 October to get in touch with them.
You can call Gwent Police on 101 with information, quoting log reference 2100383812, or you can send a direct message on Facebook or Twitter.
Alternatively, you can contact Crimestoppers anonymously on 0800 555 111.