A 26-year-old Ukrainian-Russian man was arrested by French police near Paris after he detonated explosive materials in a hotel room, leading to his own injuries. The incident prompted anti-terrorism police to launch an investigation into a possible terrorist conspiracy. The man, whose identity has not been disclosed, suffered significant burns from the explosion on Monday and was promptly treated by firefighters. Following the incident, authorities conducted a search of his hotel room and discovered various products and materials intended for the production of explosive devices. The arrest highlights the ongoing threat of terrorism in France and the vigilance of law enforcement in preventing potential attacks. The investigation into the man's motives and connections is ongoing as authorities work to ensure the safety and security of the public.