(CNN) China has called on the United States to take "concrete steps" to deliver on what was agreed between President Donald Trump and North Korean leader Kim Jong Un at their Singapore summit last year.

In a year-end interview with the state-controlled People's Daily, Chinese Foreign Minister Wang Yi said China encourages Washington and Pyongyang to "work out a feasible roadmap" to establish peace and "realizing complete denuclearization on the Peninsula."

He linked recent tensions between the two countries on the failure of the June 2018 summit, saying that the resulting joint statement was not "effectively implemented" and that the "legitimate concerns of the DPRK have not been taken seriously or addressed." North Korea is formally known as the Democratic People's Republic of Korea, or the DPRK.

In their joint Singapore statement, the North Korean leader "reaffirmed his firm and unwavering commitment to complete denuclearization of the Korean Peninsula," and Trump agreed to "provide security guarantees" to North Korea.

Diplomats from Pyongyang and Washington have been attempting to negotiate a trade that would see Kim give up his country's nuclear weapons and the ballistic missiles used to deliver them in exchange for relief from punishing US and United Nations sanctions that have crippled the North Korean economy.

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