There was no independent confirmation that the detonation was a hydrogen bomb, rather than a less powerful atomic device
, but Japan's Chief Cabinet Secretary Yoshihide Suga said Tokyo could not rule out such a possibility.
In January 2016, North Korea claimed it had successfully tested a hydrogen bomb, its fourth test of an atomic device
prior to the fifth in September of that year, but Western experts doubted at the time that it had the power of a hydrogen nuclear explosion.
South Korea is highly technologically advanced and analysts estimate it could develop an atomic device
within months of deciding to do so.
It has long been known that Israel, fearful for its existence, rushed to complete its first atomic device
on the eve of the Arab-Israeli war.
He added, "The instant they get a missile that can reach the United States, and they have a weaponized atomic device
, nuclear device on it, we're at grave risk as a nation".
We have not made atomic device
to display in a showcase.
South Korea's Defense Ministry spokesman Moon Sang Gyun that South Korean and US intelligence authorities believe North Korea has the ability to detonate another atomic device
at any time at one of its tunnels at its main Punggye-ri nuclear test site, where the five previous atomic explosions took place.
North Korea has been hit by five sets of UN sanctions since it first tested an atomic device
But the South Korean ministry of national defence believes that Pyongyang remains "ready" to detonate another atomic device
at any time.
sanctions because of its nuclear weapons program since it first tested an atomic device
North Korea has been under Security Council sanctions since it first tested an atomic device
However, the credit for consistency in the policy to make an atomic device
goes to all the subsequent governments General Zia-ul-Haq, Benazir Bhutto and Nawaz Sharif's government.