A 17-year-old boy was walking with a group of friends near a shopping centre he was struck and killed by a car in Sydney's north-west.

9News understands the boys were walking behind Carlingford Village shopping centre when a car veered off the road and pinned him into a parked van.

Friends, family and teachers from Carlington High School went to the scene to console the remaining boys at Rembrandt Street about 11.20am today.

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NSW Ambulance paramedics treated the teenager when they arrived but he died at the scene.

Another 17-year-old boy was injured and is at Westmead Hospital.

The driver, a 90-year-old woman, was also taken to Westmead Hospital for mandatory testing.

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Police have not yet been able to contact the boy's family.

He is yet to be formally identified.