An earthquake in North Korea on Sunday appeared related to a nuclear test, South Korea’s Yonhap News reported, citing the presidential office.
The report comes after an earthquake in the northeast region of North Korea.
A nuclear test would be a provocation that follows successive launches of intercontinental ballistic missiles capable of reaching the U.S. It would be the sixth nuclear test by Pyongyang since 2006 and the first since the U.S. and South Korea elected new leaders.
Tests of ICBMs in July brought Kim Jong Un’s isolated regime a step closer to achieving its aim of being able to deploy a nuclear warhead over the continental U.S. Last Tuesday, Pyongyang fired a missile over northern Japan into the Pacific Ocean.