North Korea conducted its fifth nuclear test on Friday, South Korea and Japan said, after meteorological agencies reported a surface-level seismic tremor near the North’s known test site that indicated it was its most powerful yet.

North Korea: Pyongyang conducts its most powerful nuclear test yet

North Korea conducted its fifth nuclear test on Friday, South Korea and Japan said, after meteorological agencies reported a surface-level seismic tremor near the North’s known test site that indicated it was its most powerful yet.