Police are trying to trace two bystanders who witnessed an attack on a woman in Crawley.
The victim was punched by a teenager on a bike who tried to snatch her handbag beside Capital Videos in Ifield Drive.
She fell to the ground unconscious and had to be taken to hospital.
The woman's attacker was of Asian appearance and aged 18 or 19. He wore a cream or white baseball cap and white trainers.
He was accompanied by another male aged 16 or 17, also of Asian appearance. He was 5ft 4in tall and also wore a white or cream baseball cap.
The victim saw two women standing outside the nearby laundrette at 7pm last Monday. Police are keen to talk to them.
They, or anyone else with information, should call PC Matt Webb at Crawley police station on 0845 6070999.
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