LONDON - Four people have been charged after hazardous chemicals capable of being used to make explosives were found in a home near Western University. London police say they were called to the university early Saturday to help campus police with a trespasser in custody. Police say a loaded handgun was found at the scene of the arrest. They say officers determined a second man had been involved in the trespassing incident and further investigation led to a nearby home where the chemicals were discovered. A 25-year-old and 21-year-old have been charged with unlawful possession of explosives. A 27-year-old man from Ottawa faces several weapons charges while he and a 26-year-old from London each face one count of break and enter with intent and occupying a motor vehicle with a firearm. This report by The Canadian Press was first published Jan. 27, 2026.Â