Close South Korea Detects Radioactive Gas After North Korean Bomb Test South Korea confirmed traces of radioactive xenon gas on Wednesday from the North Korean nuclear test that took place in early September. Josh King has the story (@abridgetoland). KSDK 9:42 AM. CDT September 13, 2017 TRENDING VIDEOS Protesters head to St. Charles STL Board of Alderman honors Anthony Smith NOW: LulaRoe or LulaNO? VERIFY: Are strangers following you on Facebook? Well played! Student outwits teacher's 3x5 cheat sheet rule Dad of man pulled from burning car: 'That's how God works' Missing 10-year-old boy found safe in St. Louis Johnny Morris' Wonders of Wildlife to open in Springfield, MO Should you consider freezing your credit? Search for Mexico quake survivors continues More Stories 22 arrested in march around Galleria Sep 23, 2017, 2:49 p.m. St. Louis passes resolution for Anthony Lamar Smith Sep 22, 2017, 10:35 p.m. VERIFY: Are people secretly following you on Facebook? Sep 21, 2017, 5:45 p.m.