South Korea detects radioactive gas from North Korea bomb test

South Korea said on Wednesday traces of radioactive xenon gas were confirmed to be from a North Korean nuclear test earlier this month, but it was unable to conclude whether the test had been for a hydrogen bomb as Pyongyang claimed.

North Korea conducted its sixth nuclear test on Sept. 3, prompting theUN Security Council to step up sanctions with a ban on the reclusive regime's textile exports and a cap on fuel imports. Read more.