A boy believed to be just three has been critically injured after being struck by a car in west London, police said.

Officers have appealed for witnesses after the incident in Uxbridge Road, Hayes, on Sunday.

The driver of the car stopped and no arrests have been made.

In a tweet, Hillingdon Borough Police said: “We’re working at the scene of a collision at 7pm between a car and a child in Uxbridge Road, Hayes.

“The boy, aged around 3 years, is critically injured. Driver of the car stopped; not arrested.”

Anyone with information is asked to call police on 101.