North Korean State media said the country's latest rocket-engine tests were a "great leap forward", CNN reports, and Monday South Korean officials conceded Monday that the North's tests demonstrated "meaningful progress" in rocket-engine function.
The only way to contain North Korea's nuclear ambitions is to eliminate the Kim Jong Un regime, the high-level North Korean diplomat who defected to South Korea a year ago told VOA, suggesting the US should continue deploying pressure tactics against Pyongyang.
Neither Tillerson nor Xi addressed a Twitter message Trump posted Friday, in which the president stated that China had "done little to help" the US efforts to contain North Korea's nuclear program.
North Korea also conducted a ground test of what it called a long-range rocket engine in September.
The engine will help North Korea achieve world-class satellite launch capability, KCNA said, indicating the test was of a new type of engine for long-range missiles.
Leader Kim Jong Un said this year the country was close to test-launching an ICBM.
China has agreed reluctantly to U.N. Security Council resolutions sanctioning North Korea, but is adamantly opposed to measures that might bring about a collapse of North Korean leader Kim Jong Un's regime.
South Korean wires, Yonhap news agency correspondent Harrison Choi Hyun-seok said as far as the agency was concerned the case was considered solved and they would be heading back home soon.
North Korea's young dictator, Kim Jong Un, has tried to rattle the cages of South Korea and the US before with provocative statements and actions.
He's warned that the U.S. would consider a preemptive military strike against the regime and has called on China to do more to rein in its North Korean ally.
No formal agreements were announced during Tillerson's visit to China although the two sides said they would work together to try to make North Korea take "a different course".
As North Korea's missile program gets more sophisticated, schoolchildren in Japan are preparing for attack.
Beijing has also been infuriated by the deployment of an advanced USA anti-missile system in South Korea, which it says will both harm China's own security and do nothing to ease tensions.
Repeating its regular claim that it needs nuclear and missile weapons for self-defence, the statement said the U.S. would not "frighten" Pyongyang. "And the better they can improve their technology to do that, the more accurate these systems are going to be - not only from leaving the pad, but also going into the atmosphere and then hitting the target on the other side".