WASHINGTON, The top nuclear envoys of the United States and China have held video talks to discuss North Korea's "destabilizing" behavior and its deepening military cooperation with Russia, the State Department said Friday. U.S. Senior Official for North Korea Jung Pak and her Chinese counterpart, Liu Xiaoming, held the talks on Wednesday, amid growing concerns over Pyongyang's continued weapons tests and its tough rhetoric against South Korea. Their discussions were regarding the North's "increasingly destabilizing and escalatory" behavior, the department said in a release, as concerns persisted that Pyongyang could engage in major provocations ahead of South Korea's parliamentary elections in April and the U.S. presidential vote in November. "The two sides discussed the need to maintain peace and stability on the Korean Peninsula and the importance of returning to dialogue and diplomacy," it said. "They also discussed the growing military cooperation between Russia and the DPRK, which is in violation of numerous U.N. Security Council resolutions." DPRK stands for the North's official name, the Democratic People's Republic of Korea. During the meeting, Pak also stressed the need for all U.N. member states to fulfill their obligations and fully implement U.N. sanctions regime on the North, according to the department. Source: Yonhap News Agency