A spokesman for North Korea's Foreign Ministry slammed U.S. Secretary of State Rex Tillerson's recent talk of tougher sanctions, more pressure, and possible military action, and said the North would not be deterred in its nuclear program.
Tillerson's use of Beijing's formula may leave the Trump administration open to criticism that either Tillerson bent over too far backwards to placate his Chinese hosts, or he failed to articulate the USA vision of the relationship, perhaps because it has yet to come up with a coherent policy towards China and Asia.
China has been irritated at being repeatedly told by Washington to rein in North Korea's nuclear and missile programs and the US decision to base an advanced missile defense system in South Korea.
Underscoring the tensions, North Korea conducted a test of a new high-thrust engine at its Tongchang-ri rocket launch station, and Kim said the successful test was "a new birth" of its rocket industry, Pyongyang's official media said Sunday.
Washington wants China, the North's neighbour and main trading partner, to use its influence to rein in the weapons programmes. "They have been "playing" the United States for years".
"Let me be very clear: The policy of strategic patience has ended", he said after visiting the heavily militarized border between the rival Koreas.
Wang said that includes strictly implementing United Nations sanctions on North Korea, while seeking a resumption of six-party negotiations, with the ultimate goal of ridding the Korean peninsula of nuclear weapons.
Getting North Korea "to a different place" is a matter to be approached with "a sense of urgency", he added.
South China Sea: Aircraft hangars, radar installed on artificial islands
The report comes less than a week after China's second-most powerful leader denied Beijing was militarising islands it has claimed in the Sea .
On Saturday Tillerson said after talks with his Chinese counterpart Wang Yi that tensions on the Korean peninsula had reached a "dangerous level".
After meeting his Chinese counterpart, Foreign Minster Wang Yi, on Saturday, Tillerson stressed "renewed determination" by Beijing and Washington to "work together to convince the North Korean government to choose a better path and a different future for its people", without giving details.
North Korea in 2009 walked out of the talks hosted by China, and swore it would not return.
Xi said he had communicated with President Donald Trump several times through telephone conversations and messages.
He floated a proposal that North Korea could suspend its nuclear and missile activities in exchange for a halt in joint U.S.
Relations have also been strained by China's fierce opposition to a U.S. missile defense system being rolled out in South Korea and Trump's Twitter accusation on Friday that China was not doing enough to control Pyongyang, its neighbour and historic ally.
While Trump pledged during his campaign to slap 45 percent tariffs on imports from China and label the country a currency manipulator, there has been little indication of his doing either. The ruling communist party will hold its 19th national congress, which is expected to give Xi Jinping a second five-year term as head of the party, state and military.