Two children hit by truck in Perth

A four-year-old boy and a 13-year-old girl have been hit by a truck in Perth after getting off a bus and crossing the road in front of it.

The truck hit the children in Swan View just after 4pm on Tuesday and they were taken to Midland Hospital, with the boy since transferred to Perth Children's Hospital, police said.

The driver of the truck is being interviewed by police who are appealing for anyone who witnessed the crash, or saw the truck beforehand, to call Crime Stoppers on 1800 333 000.