A motorcyclist has died after crashing into the back of a ute on Sydney’s North Shore.

The two-vehicle crash occurred on the Gore Hill Freeway at Naremburn about 10.30am on Wednesday.

Police were told the rider collided with the rear of a ute.

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Despite efforts by paramedics, the motorcyclist died at the scene.

He is yet to be formally identified.

The ute driver was uninjured but was taken to hospital for mandatory testing.

All northbound lanes of the Gore Hill Freeway have been closed following the crash, along with one southbound lane.

The closure extends from Brook St at Crows Nest, and motorists are being urged to avoid the area and allow extra travel time.

A crime scene has been established, and an investigation into the circumstances of the crash is underway.

A report will be prepared for the coroner.