One child dies, another injured in quad bike crash.

A six-year-old girl has been killed and another injured in a quad bike accident in the state’s north west at the weekend.

It is the second NSW quad bike death involving a child under 10 in two months.

Police said five children aged between five and 13 were riding two quad bikes on a rural property near Pilliga, west of Narrabri, when the accident happened.

They believed one of the bikes, carrying three children, left the road and hit two trees.

The girl died at the scene, and a 13-year-old girl suffered head injuries and was flown to Sydney Children’s Hospital.

A third girl, also 13, was not injured.

NSW Farmers Association President Derek Schoen said the accident was a tragedy.

“Any death is tragic, but involving young children this is doubly hard to take,” he said.

Police said the girls were all visitors to the property and said they were investigating whether any of the children were wearing helmets.

The death comes less than two months after another young child, a boy aged seven, was killed at Griffith in the Riverina.

Farmsafe Australia has recommended quad bikes should not be used by anyone under the age of 16, but it is believed this is not enforceable.

Mr Schoen said too often these all-terrain vehicles were not treated with enough respect.

“Some people do, but others still treat them like a toy and they are definitely not a toy,” he said.

“Some of them are quite high-powered and, in the hands of a young inexperienced person, they can prove deadly.”

This post originally appeared on ABC News.