EVERETT, Wash. - A 10-year-old Everett area boy was listed in critical condition at Children's Hospital in Seattle after being buried in a sandbox by his playmates over the weekend.

The boy has been identified by his family as Cody Porter.

His half-brother, 30-year-old Joshua Quantrille, said Cody was playing with Quantrille's three sons and several other children on Saturday in the backyard of a home belonging to a family friend, in the 13800 block of 59th Ave. SE in unincorporated Everett.

There is a sandbox in the backyard, and Quantrille said his children told him Cody came up with the idea that they should bury him head first in the foot-deep sandbox.

Quantrille said the children came up with the idea from the 'Naruto' cartoon they watch on television.

Cody was buried about from his head to his chest. At some point, he began thrashing around, but the children apparently thought he was playing.

Eventually they figured out that something was wrong. They pulled Cody out and called the adults inside the home, who administered CPR until medics arrived.

Cody was first taken to an Everett hospital and later transferred to Children's Hospital.

Snohomish County Sheriff's deputies interviewed the five children who were in the sandbox with Cody.

The sheriff's office has called it a tragic accident.