The White House said early on Thursday morning that President Barack Obama spoke with Asian leaders and agreed on tightening cooperation against North Korea and the nuclear testing it completed on Wednesday morning, which has been condemned internationally.
Obama spoke with South Korean President Park Geun-hye and Japanese Prime Minister Shinzo Abe on the phone and agreed that North Korea's actions "constitute yet another violation of its obligations and commitments under international law."
Obama and the leaders reaffirmed to work together forging a united and strong international response to North Korea's latest behaviour.
North Korea’s announcement of a hydrogen bomb test caused panic in the region over its unanticipated advance for its limited nuclear weapons.
The United Nations Security Council held an emergency session in which North Korea’s behaviour was defined as a “clear violation” and it pledged for new sanctions against North Korea.
“The members of the Security Council ... recalled that they have previously expressed their determination to take further significant measures in the event of another DPRK [Democratic People's Republic of Korea] nuclear test," Uruguay's UN Ambassador Elbio Rosselli, president of the council this month, told reporters on Wednesday.
This is the fourth time North Korea conducted a nuclear test since 2006, and the UN Security Council fell short of taking significant measures.
North Korea’s state television stated that the nuclear test, a “miniaturised” hydrogen bomb, has been a “perfect success” which elevated the country’s “nuclear might to the next level.”
On the other hand, Whitehouse spokesmen Josh Earnest said that the US government was “not consistent with the claims that the [Pyongyang] regime has made of a successful hydrogen bomb test."
He added that nothing had happened in the last 24 hours to change Washington's assessment of Pyongyang's technical or military capabilities.