A 66-year-old woman had her bag snatched while at Tesco in Hall Road.
The woman was about to get into the passenger seat of her car when a man on a pedal cycle grabbed her hand bag from her shoulder.
He then cycled off. The woman was not injured.
The black handbag and its contents were found in a nearby cycle track but the money had been removed.
The offender was a white man aged around 35. He had brown short hair, about an inch long, and was wearing a dark coloured bomber style jacket and dark jeans. He was riding a dark cycle with red on the frame.
Anyone who witnessed the theft on Saturday or who can help identify the man should call police on 101, quoting log 516 of September 21.