Boy, 12, dies in WA silo accident

A 12-year-old boy has died after falling into a grain silo on a farm in southern rural Western Australia.

Two boys, aged 11 and 12, were sitting on a small silo that was being towed behind a vehicle at a family friend's Dinninup farm on Sunday afternoon.

The pair accidentally fell into the grain-filled silo, which police told AAP was tall enough for an adult to stand in.

Despite resuscitation attempts, the 12-year-old died at the scene.

Worksafe has been advised of the accident, and police told AAP no charges will be laid.