The 63-year-old retiree was walking up the overhead bridge when a male suspect approached her from the back, snatched her handbag and ran down the bridge towards Clementi Street 13.

The victim tried to give chase but fell down and suffered abrasions on her palms and elbow.

Her bag contained $100 in cash and other personal documents.

The suspect is described to be in his late teens to early 20s and has black hair.

He was last seen wearing a blue T-shirt and bermudas.