MOSCOW (Sputnik) — Pyongyang claimed last week it had carried out its first hydrogen bomb test. It was immediately accused of attempts to undermine stability in the region.
"In relation to the claim of DPRK leadership about a hydrogen bomb test, the presidents of the two nations noted that, should this be confirmed, this would constitute a flagrant violation of UN Security Council’s resolutions and must draw a harsh international reaction," the statement read.
The presidents discussed North Korea among other issues during a US-initiated phone conversation that took place on Tuesday.