UPDATE: 11.15am Sunday, March 2. A 10-year-old boy hit by a car in Jurien Bay on Friday remains in a serious but stable condition at Princess Margaret Hospital for Children.
Jurien Bay Police said the boy was riding his bike without a helmet along Hasting Street with two other boys when the accident happened just after noon.
Sergeant Darren Slyns said the boy failed to stop at an intersection and suffered facial injuries when he was struck by an elderly motorist.
He said the driver was distressed by the incident, but unharmed.
"It's a timely reminder to parents to ensure their children are wearing helmets," Sgt Slyns said.
The boy and an eight-year-old girl who was bitten by a venomous snake in Jurien Bay on Friday were airlifted to hospital in Perth.
The girl has recovered and was discharged yesterday.
She was bitten by a snake - believed to be a brown snake - at the beach near Beachridge Drive, near the intersection of Adriana Parade.
The RAC rescue helicopter was dispatched to the coastal town of Jurien Bay, about 220km north of Perth, to help transport the girl.
She was flown from Jurien Bay Nursing Post to Sir Charles Gairdner Hospital, before being transferred to Princess Margaret Hospital for Children.