Police have released a CCTV picture of a man they wish to speak to after an attack on a man in his 60s.

At 6.15pm on Tuesday, August 7, the victim was in Tesco in St Peters Street when he was shoved by a man and punched in the face, causing him to fall to the floor and suffer bruising.

Anyone who recognises the man in the photo has been asked to contact PC Rishi Patel by emailing rishi.patel@herts.pnn.police.uk or by calling the non-emergency number 101 and quoting crime reference 41/25187/18. They can also report information online at www.herts.police.uk/Report