Police are investigating the death of a 13-year-old Brisbane boy who was believed to have been playing a choking "game" that has sparked warnings for parents to educate their children about the dangers of the online craze.
A coroner's report into the boy's sudden death on December 30 will examine whether the "game", where children choke themselves until they are unconscious, was involved.
It's understood no other people were involved in the death, and there were no drugs or alcohol involved.
The principal of the boy's north Brisbane Catholic school, which has not been named at his parents' request, broke news of the boy's death in an email on Monday that urged parents to monitor their children's online behaviour.
"His parents … wish this information be made public in order to alert other families of the dangers of this online influence," he said in the email.
Federation of Parents and Friends Association of Catholic Schools in Queensland executive director Carmel Nash said parents needed to be aware of the game, which involved children being dared to allow themselves to be choked unconscious.
"They are kids, they are not aware of the dangers and the consequences, and it really is the parents' job to talk to kids about it and for schools to make sure they are making parents aware," she told The Courier Mail.
The boy was a keen cricket and AFL player and his clubs have paid tribute to him in a Facebook post.
"(He) was a talented left-arm bowler, sharp fielder and hard-hitting batsman. A team player who embraced the true spirit of friendship and cricket," his club cricket team wrote.
His school cricket coach paid tribute to the "fine young man" on Facebook.
"A good captain, a good team mate and a good leader, who was a credit to his family. My thoughts and condolences are with his family, his club mates and school mates."
In June last year, a Gold Coast schoolboy underwent surgery after a similar game went wrong at Palm Beach-Currumbin State High.
- AAP, with Fairfax Media