Kim Gunn, center, South Korea's special representative for Korean Peninsula peace and security affairs, his U.S. counterpart Sung Kim, right, and Japanese counterpart Takehiro Funakoshi pose before their meeting at the Foreign Ministry's office in Seoul, June 3. AP-Yonhap

The chief nuclear envoys of South Korea, the United States and Japan reaffirmed their shared commitment to a stronger trilateral cooperation against North Korea's threat during their meeting in Indonesia last week, according to the State Department on Sunday.

Kim Gunn, Seoul's new special representative for Korean Peninsula peace and security affairs, on Friday met his U.S. counterpart, Sung Kim, and Japan's Takehiro Funakoshi on the resort island of Bali, where the Group of 20 (G-20) foreign ministers' session was held.

"U.S. Special Representative Kim reaffirmed the importance of enhancing trilateral security cooperation in the face of the DPRK's continued destabilizing and unlawful ballistic missile launches and committed to work closely to mitigate the threats posed by the DPRK's malicious cyber activity," department spokesperson Ned Price said in a press release. The DPRK stands for the Democratic People's Republic of Korea, the North's official name.

"They reiterated their commitment to a diplomatic path and called upon Pyongyang to return to dialogue," Ned added. (Yonhap)