A teenager was allegedly kicked off his bike and punched and kicked as he lay on the ground.
Police say the 14 year old suffered minor injuries to his head and face during the assault.
It happened near at the pedestrian crossing near St Helier Grand Marche at around 7.30pm on Saturday (5th October)
The attacker, who is also 14, had short dark hair and was wearing a black hooded top and dark jeans.
Police want to speak to any witnesses.
"Anyone who may have seen this or who has any information is asked to contact police on 612612 or the independent charity Crimestoppers anonymously on 0800 555 111 or via their Anonymous Online Form at Crimestoppers-uk.org"

Phone robber jailed after targeting a 'lone' woman
Channel Islands' parliamentary Standards Commissioner resigns
Island Energy charged over Mont Pinel gas explosion
Jersey airport to open early due to broken scanner
Critically endangered species of lemur joins Jersey Zoo
Lido to 'pause trading' amid ongoing uncertainly
Ports of Jersey applies to remove Gorey Pier landing stage
Jersey's police officers to be held to new standards
Comments
Add a comment