US intelligence officials have said air samples confirm a nuclear explosion did take place last week in North Korea. The UN Security Council voted unanimously this weekend to impose sanctions against Pyongyang in response to the test. The United States has stepped up diplomatic efforts to ensure speedy enforcement of the sanctions.
On a visit to Tokyo, Washington’s special envoy Christopher Hill said the US and Japan had agreed to cooperate on this task.
He added they would also try to convince North Korea to return to the six-party nuclear talks, involving also China, Russia and South Korea. In the Southern capital, Seoul, a regular nuclear attack drill took place, ahead of a visit by the US Secretary of State Condoleeza Rice later this week.
She will travel to the country to meet with the Japanese and South Korean Foreign Ministers. The three are expected to focus on strengthening their countries’ ties, after the resolution to impose sanctions.