Nuclear envoys of South Korea and the United States (U.S.) held phone talks early on Thursday on the Korean Peninsula issue, according to Seoul’s foreign ministry.

Noh Kyu-duk, South Korea’s special representative for Korean Peninsula peace and security affairs, talked via phone with Sung Kim, U.S. special representative for the Democratic People’s Republic of Korea (DPRK) policy.

The phone talks came about two weeks after the U.S. envoy made a five-day visit to Seoul.

During his trip, Sung Kim said the U.S. can meet with the DPRK “anywhere, anytime without preconditions’’.

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Denuclearisation talks between the DPRK and the U.S. were stalled since the second summit between top DPRK leader Kim Jong Un and former U.S. President Donald Trump ended without agreement in February 2019 in the Vietnamese capital of Hanoi.