<p>Japan and the US early on Thursday confirmed to closely cooperate to cope with the hydrogen bomb test conducted by North Korea on Wednesday.<br /><br /></p>.<p>The international community needs to take a resolute action to send strong message to North Korea in order to prevent further provocations from the country, Japanese Prime Minister Shinzo Abe told US President Barack Obama in a phone conversation. <br /><br />For his part, Obama said the nuke test was a threat to the region and the international community, and the US would take measures to ensure the security of its allies, including Japan.<br /><br />Abe on Wednesday strongly condemned the hydrogen bomb test, saying the move was a "significant threat" to Japan's national security. Japan would consider further sanctions against the North Korea, Xinhua news agency reported.<br /><br />After a magnitude-5.1 shallow-focus earthquake was detected on Wednesday in northeast part of North Korea, the country's official media made a special report and announced it had successfully conducted its first hydrogen bomb test. <br /><br />The move prompted the United Nations Security Council to hold an emergency meeting over the issue and drew international criticism that the test jeopardized efforts to realize a denuclearised Korean Peninsula. <br /></p>
<p>Japan and the US early on Thursday confirmed to closely cooperate to cope with the hydrogen bomb test conducted by North Korea on Wednesday.<br /><br /></p>.<p>The international community needs to take a resolute action to send strong message to North Korea in order to prevent further provocations from the country, Japanese Prime Minister Shinzo Abe told US President Barack Obama in a phone conversation. <br /><br />For his part, Obama said the nuke test was a threat to the region and the international community, and the US would take measures to ensure the security of its allies, including Japan.<br /><br />Abe on Wednesday strongly condemned the hydrogen bomb test, saying the move was a "significant threat" to Japan's national security. Japan would consider further sanctions against the North Korea, Xinhua news agency reported.<br /><br />After a magnitude-5.1 shallow-focus earthquake was detected on Wednesday in northeast part of North Korea, the country's official media made a special report and announced it had successfully conducted its first hydrogen bomb test. <br /><br />The move prompted the United Nations Security Council to hold an emergency meeting over the issue and drew international criticism that the test jeopardized efforts to realize a denuclearised Korean Peninsula. <br /></p>