Donald Trump assaults China over its trade ties with Pyongyang in an early morning tweet

The US has ramped up pressure on North Korea after Tuesdays successful intercontinental ballistic missile( ICBM) test, making a show of force off the Korean peninsula and calling for a broad international effort to hamper the secretive nations nuclear weapons programme.

Donald Trump attacked China over its trade ties with Pyongyang in an early morning tweet, after his top diplomat warned that any country providing economic or military aid, or hosting Northern korean workers, was abetting Kim Jong-uns regime.

Trade between China and North Korea grew nearly 40% in the first quarter. So much for China working with us but we had to give it a try, Trump wrote. He appeared to be referring to data released in April, which proved China had shut down coal imports in line with UN sanctions but increased purchases of other products.

The US chairwomen assaults on North Koreas most important ally cast furthertensions at a UN security council meeting on the incident, which is now being called by Washington, Tokyo and Seoul.

Nikki Haley, the US ambassador to the UN, told the session that the missile launch was a clear and sharp military escalation and warned that North Koreas actions were quickly closing off the possibility of a diplomatic solution.

The United States is prepared to use the full range of our capabilities to defend ourselves and our friends, she told. One of our capabilities lies with our considerable military forces. We will use them, if we must, but we prefer not to have to go in that direction.

China has already called for restraint from all sides, after joining diplomatic forces-out with Russia to suggest that North Korea suspend its rocket programme in return for a moratorium on large-scale US and South Korean military exercises.

North Korea nuclear explainer

But even as they condemned North Koreas provocation, both China and Russia criticized the use of military force in reprisal while calling for a halt to the deployment of a US missile defense system in South Korea.

The prospect of taking military measures to resolve the problems of the Korean peninsula should be excluded, deputy Russian UN ambassador Vladimir Safronkov told the Security Council on Wednesday. We express our support to the idea of North and South Korea engaging in dialogue and consultations.

Chinas UN ambassador Liu Jieyi told North Koreas missile test was a flagrant violationof UN resolvings, but aimed his missive at both sides of the conflict.

We call on all the parties concerned to exercise restraint, avoid provocative actions, and belligerent rhetoric, demonstrate the will for unconditional dialogue and actively involved together to defuse the tension, Jieyi said.

That would encompass deployments like the live-fire ballistic missile exert early on Wednesday that officials in Seoul said was intended as a warning to Pyongyang.

The South Korean president, Moon Jae-in, said it would demonstrate the allies determination to counter North Korean provocations with deeds and not only words of disapproval. We need to clearly prove our missile defence readiness to North Korea, the presidential Blue House said in a statement.

The Pentagon said on Wednesday that the missile test-fired by North Korea was not one the US has hitherto find, and was fired from a new launch point.

Jeff Davis, the Pentagon spokesman, told reporters that as no airspace had been cleared for the test, commercial planes and ships in the surrounding area had been exposed to danger. He said: This act demonstrates that North Korea poses a threat to the United States and our allies and we remain prepared to defend ourselves and our friends and to use the full range of capabilities at our disposal.

Davis said the US was capable of defending against North Koreas missiles , noting that a US-based missile interceptor had successfully knocked down a simulated incoming North Korean ICBM last month.

The US secretary of state, Rex Tillerson, earlier said any country that supported Pyongyang, hosted workers sending hard currency remittances or failed to implement United Nations sanctions was aiding and abetting a dangerous regime.

Testing an ICBM represents a new escalation of the threat to the United States, our allies and partners, the region, and the world. All nations should publicly demonstrate to North Korea that there are repercussions to their pursuing of nuclear weapons, he said in a statement.

Kim delivered his own message on Wednesday, with the country Korean Central News Agency( KCNA) quoting him as telling: American bastards would be not very happy with this gift sent on the July 4 anniversary.

The news agency claimed the North Korean missile was capable of carrying a large, heavy nuclear warhead that could survive re-entry into the earths atmosphere.

Kim was quoted as saying the Norths long showdown with Washington had entered the final stage and that Pyongyang would not set its nuclear weapons and ballistic missiles up for negotiation unless the US hostile policy and nuclear threats come to an end completely.

A report in its state media told Kim advised his scientists to frequently send big and small gift packages to the Yankees.

The US and its friends are expected to seek agreement on tougher measures against Pyongyang at the emergency session of the UN security council. Trump and Vladimir Putin are also expected to address growing Northern korean provocations at their session on the sidelines of the G20 summit in Hamburg on Friday.

Kim Jong-un looks on during the test-fire of intercontinental ballistic missile Hwasong-1 4 in this undated photo. Photograph: KCNA/ Reuters

China is pushing for talks between world powers and North Korea on dismantling its nuclear programme but the US maintains that Pyongyang must first halt its rocket and nuclear tests.

Senior US and military officials accused North Korea of threatening the truce that has maintained a shaky peace on the Korean peninsula since the end of the 1950 -5 3 Korean war.

Self-restraint, which is a selection, is all that divides armistice and war, Gen Vincent K Brooks , commander of the US Forces Korea, and Gen Lee Sun-jin, president of the Souths joint chiefs of staff, said in a statement.

The South Korean Yonhap news agency quoted Lee as saying South Korea and the US were preserving patience and self-restraint despite the Norths repeated provocations.

Analysis by Japan and South Korea has supported the account were presented by North Koreas Academy of Defence Science, which said the missile reached an altitude of 1,741 miles( 2,802 km) and flew 580 miles. The US initially described it as an intermediate-range weapon but now concedes it was an ICBM.

North Koreans have celebrated the ICBM launch in the capital, Pyongyang. A 38 -year-old Pyongyang resident named Ri Song-gil said his country can attack anywhere in the world. He added: Now, the time when the US could threaten the world with atomic weapon has passed away.

Kim Hye-ok, 27, said the launch was extremely delightful news, adding that North Korea will march forward along our own way despite international sanctions.

David Wright, a US-based rocket expert, estimated that the highly lofted missile could have a possible maximum scope of 4, 160 miles, which could put Alaska in its scope if fired at a normal trajectory.

Hamish de Bretton-Gordon, a former commanding officer of the British Armed Forces Joint Chemical Biological Radiological Nuclear Regiment, used to say in capability of rocket terms and delivery, it is a major step up and they seem to be making progress week on week.

Questions remain about whether the North can miniaturize a nuclear weapon to fit a missile nosecone, or if it has mastered the technology needed for it to survive re-entry into the earths atmosphere.

Some experts believe the North already has the ability to mount warheads on shorter-range missiles that can ten-strike South Korea and Japan, home to dozens of US military bases and about 80,000 US troops.

Jeffrey Lewis, an expert on nuclear non-proliferation, said the US may have to accept that North Korea was close to intersecting the red line of developing a nuclear weapon that can threaten parts of the US.

The window for negotiating denuclearization is closed, Lewis said. The big phase is that we have to accept North Korea with a nuclear-armed ICBM.

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