A Betfred shop worker was mugged at a bus stop.
The woman, who is manager of the Granton Walk branch in Ingol, was standing at a bus stop in Tag Lane, at around 1.30pm on October 11, when she felt a hand on her shoulder.
A young white man, aged 18 to 20, with short, mousy, shaved hair and a dark, shiny, waterproof jacket grabbed at her green bag. They struggled until the strap snapped.
The woman, who has worked at the shop for 10 years, told police she screamed and shouted for help.
The thief fled towards Dovedale Avenue and down a pathway to Threefields.
Detectives from Preston CID are investigating and are appealing for information about her lime green bag.
Anyone with information should call 101.