VAN NUYS ( — Police say a woman in a motorized wheelchair has died after being struck by a car in an unmarked crosswalk in Van Nuys.

The accident occurred about 5:50 p.m. Saturday at the intersection of Sepulveda Boulevard and Haynes Street.

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First responders found the woman unconscious and lying on the ground. She was taken to an area hospital where she was pronounced dead.

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A news release issued by the Los Angeles Police Department identified the driver as 50-year-old Los Angeles man.

According to authorities, he stopped to assist the woman after the crash and remained at the scene.

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Anyone with more information about the crash is asked to call the Valley Traffic Division at (818) 644-8022.