Officers investigating a racially aggravated assault in Tring are appealing for information and witnesses.
It happened in the Spider Park between 6.15pm and 7pm on Saturday 13 November.
The victim, a 16-year-old boy, was with friends when the group became engaged in a physical altercation with another group of teenagers around the same age.
During the incident, a racial slur was directed at the victim.
PC Max Robinson, who is investigating, said: ‘We have pursued several lines of enquiry to date, but we are now appealing to the public for information.
‘Were you in the area at the time? Did you witness the incident? Do you know the identity of anyone involved? If you can help, please get in touch as soon as possible.’
You can email PC Robinson at firstname.lastname@example.org, report information online at herts.police.uk/report, talk to one of the Force Communication Room operators via web chat at herts.police.uk/contact, or call the non-emergency number 101 quoting reference 41/89237/21.