Top nuclear envoys of South Korea and Japan held talks in Tokyo on Monday to discuss ways to bring North Korea back to dialogue.
This amid growing tensions caused by the North's missile launches over the weekend.
During Monday's meeting, Seoul's chief nuclear negotiator, Noh Kyu-duk, and his Japanese counterpart, Takehiro Funakoshi, were expected to explore ways to encourage the North's return to dialogue through humanitarian aid and other incentives as well as touch on the regime's recent missile launches.
Earlier on Monday, Japan also showed concern over the missile launch, underscoring that it threatens peace and safety in the region.
Noh and Funakoshi are set to hold a trilateral gathering with U.S. special representative for the North, Sung Kim on Tuesday.
The three had their last meetup in Seoul back in June.