Beijing wants to strengthen cooperation with Pyongyang and work together to oppose hegemony, Foreign Minister Wang Yi told his North Korean counterpart in a thinly veiled reference to the United States.

North Korea's Foreign Minister Choe Son-hui met Wang on Sunday in the Chinese capital, weeks after a rare visit by North Korean leader Kim Jong Un, who sought to develop the countries' bilateral relations.

"Maintaining, consolidating, and developing China-DPRK relations has always been the unswerving strategic policy of" the Chinese government, Wang told Choe, using the acronym for North Korea.

"China is willing to strengthen coordination and cooperation with the DPRK in international and regional affairs, oppose all forms of hegemonism, and safeguard the common interests of both sides and international fairness and justice," he said, according to a Chinese foreign ministry readout.

North Korea's state news agency KCNA said on Monday the ministers had agreed fully on a variety of issues in their discussions.

Choe delivered a message from North Korean leader Kim Jong Un that the bilateral relationship between two countries is unchanging and should develop to meet the demands of the times, KCNA said.

The ministers had in-depth talks on domestic and international affairs and had a "complete agreement" over the matters, KCNA said, without elaborating. (Agencies)