A young motorcyclist is fighting for his life in hospital after he collided with a car in Adelaide’s southern suburbs.

About 2.15pm on Wednesday, emergency services were called to a crash between a motorcycle and a car on Glynville Drv at Hackham West.

It is believed the motorcyclist crashed into the side of a Toyota SUV.

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The 25-year-old rider suffered serious injuries and was rushed to Flinders Medical Hospital where he remains in a critical condition.

The driver of the SUV was uninjured.

Major Crash officers are attending the scene.

Road users are asked to avoid the area where possible.