Carrier group heads for Korean waters as Trump calls leaders

Recent U.S. commercial satellite images indicate increased activity around North Korea's nuclear test site, and third-generation dictator Kim Jong Un has said the country's preparation for an ICBM launch is in its "final stage".

The United States and its allies fear North Korea could be preparing to conduct another nuclear test or launch more ballistic missiles.

Under Kim's leadership, North Korea has been aggressively pursuing a decades-long goal of putting a nuclear warhead on an ICBM capable of reaching the US mainland. He previously advised the president to tell the Chinese officials the usa will use military action in North Korea if Beijing doesn't make strides to stop Kim Jong-Un's nuclear program, The Daily Mail reports.

President Xi Jinping called for restraint when dealing with North Korea during a telephone call with President Donald Trump, Chinese state media reported Monday, amid speculation that Pyongyang could soon carry out a sixth nuclear test.

U.S. President Donald Trump was expected to focus on rising tensions with North Korea as he hosted members of the UN Security Council at the White House on April 24.

"You better believe I'm willing to obliterate North Korea's missile program before I would allow one to hit America", Graham told reporters Monday.

The nuclear-powered submarine USS Michigan approaches to join the USA aircraft carrier USS Carl Vinson in drills near the Korean Peninsula, at Busan port in Busan, South Korea, Tuesday, April 25, 2017. What we've said is, we want you to put more pressure on North Korea, whether that's with coal, whether that's with oil, whether that's with other sanctions.

The trio also agreed that China and Russian Federation should play a bigger role in reining in the North, said Kim Hong-Kyun, South Korea's chief envoy on the issue. Trump also "criticized North Korea's continued belligerence and emphasized that Pyongyang's actions are destabilizing the Korean Peninsula".

South Korea says a US nuclear-powered submarine has docked in the southern port of Busan, but it isn't expected to participate in joint naval exercises with South Korea.

US officials have told Reuters tougher sanctions under consideration include an oil embargo, banning North Korea's airline, intercepting cargo ships and punishing Chinese banks and other foreign doing business with Pyongyang.

Yesterday, US President Donald Trump called for tougher new United Nations sanctions on Pyongyang, saying the North was a global threat and "a problem that we have to finally solve".

Last year, North Korea conducted two nuclear tests, which would have improved its knowledge in making nuclear weapons small enough to fit on long-range missiles.

"The South Korean and US militaries are fully ready for North Korea's nuclear test", Moon said.

North Korea responded by saying that the deployment was "an extremely risky act by those who plan a nuclear war to invade".

Seoul has long anxious about losing its voice in global efforts to deal with North Korea's nuclear threat - something local media have termed "Korea Passing". It has marked similar events in the past with nuclear tests or missile launches.

In an interview on NBC's "Today" on Monday, US Ambassador to the UN Nikki Haley emphasized that the United States and the worldwide community are seeking to maintain pressure on North Korean leader Kim Jong Un, but that they are "not trying to pick a fight with him".

Asked about the threshold for United States action, Haley said on NBC's "Today Show" that "if you see him attack a military base, if you see some sort of intercontinental ballistic missile, then obviously we're going to do that".