Robert McAlister, a pupil at Rothesay Primary School, was taken to Rothesay’s Victoria Hospital after the accident at his parents' farm at about 6.20pm on Sunday.

A post-mortem examination will be held into his death and a report sent to the procurator fiscal.

Rothesay Primary School's Head Teacher, Wendy Brownlie, said on Tuesday: "Everyone associated with Rothesay Primary and the Joint Campus will be devastated to hear of this tragedy.

"Robert was a popular boy who will be sadly missed by both pupils and staff. He was a sporty lad and was always up for trying out new challenges. He recently took part in national shinty finals, and earlier on Sunday had been sailing, which he'd only recently started but was very much enjoying. Tragically, he was particularly passionate about his quad bike.

"Educational psychologists and the local chaplain will be in school today to try to help the children come to terms with what has happened.

"The thoughts of the entire school community are with Robert's family and friends, and and we will be doing all we can to support them."