A taxi driver was robbed at knifepoint by a man who asked for directions.

But he dropped the money as he rode off on a motorbike in Hillbarn Lane, Worthing.

The driver had just dropped off a fare at the nearby Norwich Union Offices when a man tapped on the car window.

He asked for directions, then produced a small knife with a wooden handle and demanded the taxi driver hand over money.

The robber grabbed the money and ran behind the taxi to a parked black trials bike.

He wore a black bomber jacket, blue jeans and a black crash helmet Today police appealed for witnesses who were in the area at about 9.30 am yesterday.