Police say an 18-year-old from London, Ont., has drowned in the waters of Lake Huron at Ipperwash Beach.Ontario Provincial Police say they responded to a call of two swimmers in distress yesterday shortly after 4 p.m. in the municipality of Lambton Shores, about 75 kilometres west of London.They say the 18-year-old swimmer was found unresponsive and taken to a hospital, where he was pronounced dead.Police say the second swimmer, a 12-year-old from London, was safely brought to shores by members of the public.Police say he was taken to hospital as a precaution.Lambton County OPP say the investigation is ongoing and anyone with information is asked to come forward.This report by The Canadian Press was first published July 1, 2025.