Police are hunting for a sex pest thought to be behind a series of indecent exposures and rude gestures at children.

There have been a number of incidents over the past four months in West Sussex.

Over the weekend, a man made rude gestures to children while sitting in his car in Warren Crescent, East Preston, and on Sunday a nine-year-old girl was approached in Nyton Road, Eastergate.

Two weeks ago in Eldon Way, Littlehampton, a man gestured to an 11-year-old and police say there are links to indecent exposures in Middleton and East Preston in May and June.

The man was described as in his 30s or 40s, with dark hair, overweight and driving a green car.