Police in Nanaimo, B.C., are investigating an assault on a teenage boy where the attacker is alleged to have told the 15-year-old to remove his clothes and walk home naked.

RCMP say the boy attended a gathering for teens when he was kicked and punched by a 16-year-old suspect, who allegedly threw the victim’s cellphone, wallet and shoes in a lake.

Mounties say when the teen began walking, a bystander helped by giving him some clothing and a ride home,