A 16-year-old boy has died and a 17-year-old boy has been arrested after an incident on a Scottish beach in Irvine.

Kayden Moy, 16, from East Kilbride, was found seriously injured at 6.45pm on Saturday.

He was taken to University Hospital Crosshouse in Kilmarnock, where he died in the early hours of Sunday.

Kayden’s father, Paul, wrote on Facebook: “My firstborn son, my big boy, my best friend, my main man, my everything. Rest easy, my boy.”

Monica Lennon, the Labour MSP for Central Scotland, wrote on X: “My sincere condolences to Kayden’s heartbroken family and friends. This heartbreaking and violent tragedy will stun East Kilbride and Scotland. Enough is enough.”

Police Scotland announced the arrest of a boy, 17, on Sunday.

The force is appealing for people who were on the beach to contact the police if they have mobile phone footage of the incident in which Kayden was injured.

DCI Campbell Jackson, of Police Scotland’s major investigations team, said: “An extensive investigation is under way to establish the full circumstances surrounding this death. Our officers are supporting the boy’s family at this very difficult and heartbreaking time.

“From our investigation so far, we know there were a number of people on the beach around the time of the disturbance. We believe several of them were filming at the time and may have footage of what happened.

“I would urge people to review the footage they have and contact police if they think the footage captured could be of significance to our investigation.”

Detectives have also set up a website that gives members of the public access to a form to send information directly to the investigation team, which can be submitted anonymously.

Supt Jim McMillan said: “We understand this death will be of great concern for the local community, but please be assured that we are doing everything we can to identify those involved.

“There will be additional patrols in the area as we carry out our inquiries and anyone with any concerns can approach these officers.”