An 11-year-old boy was physically assaulted after an argument in a park.

Police said the incident happened at around 5.15pm in the recreation ground in Sherwood Avenue, St Albans on October 5.

The boy was slapped causing a reddening to his cheek after a “verbal altercation”, police said.

Police would like to speak to another boy described as being white, around 15 or 16-years-old, with blond hair and an earring.

He was wearing tracksuit bottoms and a bag on his shoulder. He rode a bike with blue handlebars.

PC James Keenesaid: “I am appealing for anyone who saw what happened to get in touch. The incident happened during a busy time in the park after school so there should hopefully be people who saw what happened.

“A member of the public stopped to help the victim, but their identity is unknown at this time. I would like to appeal to this person to get in touch as you may be able to help with our enquiries.”

Anyone who can help should get in contact on the non-emergency number 101 or email james.keene2@herts.pnn.police.uk quoting crime reference 41/43395/18.

You can also report information online at https://www.herts.police.uk/Report.

Alternatively, you can contact the independent crime-fighting charity Crimestoppers anonymously on 0800 555 111 or through their Anonymous Online Form at www.crimestoppers-uk.org