A man is in a critical condition after a truck crashed into a Landsdale building overnight.
Just after 8:00pm, a light truck was travelling west on Mullingar Way when it left the road and crashed into the building.
The impact trapped the 45-year-old male driver in the cab of the truck for several hours until he was able to be extracted.
He was conveyed to Royal Perth Hospital in a critical condition.
Crash investigators are seeking witnesses to the crash or who saw the vehicle travelling prior to the crash.
Anyone with information is asked to call Crime Stoppers on 1800 333 000 or to make a report online at crimestopperswa.co.au.