Shortly before 6pm on Tuesday evening, an unknown man attacked the salesperson at a newsagents on avenue de la Liberté.

He then threatened the man with a weapon and demanded that he hand over money from the cash register. He stuffed it in his backpack and ran off in the direction of Park Gerlach.

Police describe the perpetrator as a "dark-skinned man of slim stature, around 180-185cm tall, speaking French".