Earlier in the day, South Korean President Moon Jae-in's special envoy Lee Hae-chan arrived in China to meet with country's leadership.
Chinese President Xi Jinping has said he's willing to help ties with South Korea return to a "normal track" amid a rift over Seoul's deployment of a high-tech US missile-defense system to guard against North Korean threats.
In a separate meeting with Lee on Friday, China's top diplomat Yang Jiechi said China "hopes that South Korea can respect China's major concerns [and] appropriately resolve the THAAD issue", Xinhua reported.
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Wainwright said the agency is analyzing the virus and has yet to identify who is responsible for the attack. She said: "We were instructed by the CCG to turn all computers off on Friday afternoon".
North Korea on Friday sent a critical message via its official media to the newly launched liberal South Korean government over its policy that pursues the North's denuclearization and seeks dialogue at the same time, claiming that dialogue can never be compatible with confrontation.
China has been infuriated by the United States deployment of the THAAD system in South Korea, saying it was a threat to its security and would do nothing to ease tensions with Pyongyang.
South Korea has complained that some of its companies doing business in China have faced discrimination in retaliation for the THAAD deployment.
Le pesa El Infierno a Chivas
Está prohibido todo tipo de reproducción sin autorización escrita de la Agencia EFE S/A. Así, terminó la participación de Chivas en el Apertura 2016.
Seoul and Washington have argued that the missile system is aimed at North Korean aggression, while China sees it as a threat to its own security. It has retaliated against Seoul by suspending visits to South Korea by Chinese tour groups and trips to China by South Korean entertainers.
While North Korea regularly tests shorter range missiles, it is also working to master the technology needed to field nuclear-tipped missiles that can reach the USA mainland.
On Thursday, Chinese Foreign Minister Wang Yi told Lee that Seoul must "remove the obstacles that have been placed on the road to good relations between our two countries".
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Ahora es Facundo Moyano, diputado nacional y titular del gremio de los trabajadores del peaje, quien amenaza con abandonar las filas conducidas por Sergio Massa .
Left-leaning Moon and Xi spoke on the phone last week and both agreed that denuclearising the North was a "common goal" between them, Moon's spokesman said.