A 15-year-old boy died in an ATV accident in Newfoundland Monday, when his makeshift cape got caught in the vehicle's rear axle.

Witnesses at the scene in Marystown, N.L., saw the boy riding the ATV with a blanket tied around his neck, simulating a cape. The blanket got got in the rear axle, and tightened around his neck, pulling him off the vehicle.

An emergency room nurse on his way to his cabin happened across the scene. He found the boy with no pulse and started performing CPR, but failed to revive him.

Paramedics arrived soon after and performed CPR until they pronounced him dead, said police.

The matter remains under investigation.