A group of youths were threatened with knives and robbed of their belongings just after midnight on Tuesday.

The incident took place at Chemin de la Corniche, a balcony-like area in the Upper Town overlooking the Grund.

The perpetrators, a group of five youths, started harassing another group of three youths. The attackers threatened the victims with  knives and stole a coat, phone, speaker and headphones.

Police launched a search for the group of five. No one was injured in the incident.