Norway's security service says a 17-year-old has been arrested in connection with an explosive device found near a busy subway station in Oslo and defused before it detonated.
Signe Aaling, chief prosecutor with the PST security service, said Sunday that the youth was detained on suspicion of handling explosives.
Security service head Benedicte Bjornland says it's unclear if the teen had plans to carry out an attack with the homemade device.
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