Motorcyclist killed in Beckenham

The horror run on WA roads has continued after a motorcyclist was killed in a crash in Beckenham this afternoon.

Police Major Crime investigators are trying to determine how the male motorcyclist, believed to be in his mid-30s, came to lose control of his bike on William Street at about 3.50pm.

Major Crash Senior Constable Allan Mawdesley said the man received extensive injuries and died at the scene after crashing into a steel post on a median strip while travelling north.

The man was thrown from the bike into a tree and a second pole while his bike ended up about 150m away on a footpath.

Investigators were trying to identify the man so his next of kin could be told of his death.

Police were speaking to witnesses at the scene and have asked anyone who saw the rider before the crash to contact police on 131 444.

In York this morning, a truck being driven by a 26-year-old woman left the road and collided with a tree.

The woman was airlifted to Royal Perth Hospital where she remains in a critical condition.

A truck rolled over north of York this morning. Picture: Supplied

Also this morning a cyclist was taken to hospital after a crash with a car in Osborne Park.

A 27-year-old man has died after his motorcycle rear-ended a turning vehicle in Oakford last night.

The Baldivis man was on a Harley Davidson that ran into the back of a ute turning into Orton Road.

He was taken to Armadale Hospital but died from his injuries.

Yesterday an 18-year-old man was also airlifted to hospital after a head-on crash in Donnybrook.

A star WA triathlete was killed in an alleged hit-and-run in Welshpool on Saturday morning

On Friday, three people died and a young boy was seriously injured during a horror day.