North Korea 'ready to strike' US aircraft carrier as Trump leans on China, Japan

North Korea said it was ready to sink a US aircraft carrier to demonstrate its military might, while US President Donald Trump prepared to call on China and Japan to assist in mounting pressure on the rogue nation.

The United States ordered the USS Carl Vinson carrier strike group to sail into waters off the Korean peninsula in response to growing concern over the North's nuclear and missile tests, and its threats to attack the US and its Asian allies.

The US government has not specified where the carrier strike group is as it approaches the area.

Aircraft carrier USS Carl Vinson transits the Sunda Strait in Indonesia on Friday. Source: US Navy/AFP
Aircraft carrier USS Carl Vinson transits the Sunda Strait in Indonesia on Friday. Source: US Navy/AFP

The aircraft carrier is currently in the Indian Ocean and US Vice President Mike Pence said on Saturday it would arrive "within days," but gave no other details.

North Korea remained defiant.

"Our revolutionary forces are combat-ready to sink a US nuclear-powered aircraft carrier with a single strike," the Rodong Sinmun, the newspaper of the North's ruling Workers' Party, said in a commentary.

The paper likened the aircraft carrier to a "gross animal" and said a strike on it would be "an actual example to show our military's force".

The commentary was carried on page three of the newspaper, after a two-page feature about leader Kim Jong Un inspecting a pig farm.

North Korea has conducted five nuclear tests, two of them last year, and is working to develop nuclear-tipped missiles that can reach the United States. Photo: AAP
North Korea has conducted five nuclear tests, two of them last year, and is working to develop nuclear-tipped missiles that can reach the United States. Photo: AAP

A senior US administration official said Trump was expected to speak later on Sunday with Chinese President Xi Jinping and Japanese Prime Minister Shinzo Abe.

In another sign of the intense focus on Pyongyang in Washington, the White House is expected to host US senators for a top-level briefing on North Korea on Wednesday, a White House official said.

The official said the briefing would be led by Secretary of State Rex Tillerson, Defense Secretary Jim Mattis, Director of National Intelligence Dan Coats and Marine General Joseph Dunford, chairman of the Joint Chiefs of Staff.

US and South Korean officials have been saying for weeks the North could soon stage another nuclear test, something the United States, China and others have warned against.


South Korea has put its forces on heightened alert.

China, North Korea's sole major ally, opposes Pyongyang's weapons programs and has appealed for calm. The United States has called on China to do more to help defuse the tension.

Australia's Prime Minister Malcolm Turnbull has joined Trump in leaning on China to step up and defuse matters.

"If Australia persists in following the US' moves to isolate and stifle North Korea... this will be a suicidal act," a North Korean foreign ministry spokesman said after Australian Foreign Minister Julie Bishop called the hermit state a "serious threat".

Speaking during a visit to Greece, Chinese Foreign Minister Wang Yi said there was already enough shows of force and confrontation and appealed for calm.

"We need to issue peaceful and rational sounds," Wang said, according to a statement issued by China's Foreign Ministry.


US CITIZEN DETAINED

Adding to the tensions, North Korea detained a Korean-American man in his 50s, bringing the total number of US citizens held by Pyongyang to three.

The man, Tony Kim, had been in North Korea for a month teaching accounting at the Pyongyang University of Science and Technology (PUST), the institution's chancellor, Chan-Mo Park, told Reuters. He was arrested at Pyongyang International Airport on his way out of the country.

The arrest took place on Saturday morning local time, the university said in a statement, and was "related to an investigation into matters that are not connected in any way to PUST".

US and South Korean officials have been saying for weeks the North could soon stage another nuclear test, something the United States, China and others have warned against. Photo: AAP
US and South Korean officials have been saying for weeks the North could soon stage another nuclear test, something the United States, China and others have warned against. Photo: AAP

North Korea will mark the 85th anniversary of the foundation of its Korean People's Army on Tuesday. It has in the past marked important anniversaries with tests of its weapons.

North Korea has conducted five nuclear tests, two of them last year, and is working to develop nuclear-tipped missiles that can reach the United States.

It has also carried out a series of ballistic missile tests in defiance of UN sanctions.