Seoul accuses Kyiv of breaching a nondisclosure agreement by revealing the transfer of two North Korean soldiers captured in Russia, Anadolu Agency reported.
South Korea's military is investigating whether North Korean mines caused explosions inside the Demilitarized Zone.
North Korean official Kang Chol Su says South Korea has become a 'decisive center for collective defense' in line with US strategic interests.
Seoul wants to end a long-standing arrangement under which the US would command South Korean forces in a renewed conflict on the Korean peninsula.
South Korea's presidential office has criticized Ukraine for denying a nondisclosure agreement related to North Korean prisoners of war.
Russian envoy Mikhail Ulyanov says Moscow hopes to see a shift in Washington's stance toward North Korea, which he described as hostile and built around alliances with South Korea and Japan.
Two-thirds of the fewer than 33,000 South Koreans registered as having separated family members in the North are now aged 80 or older.
A new report highlights how South Korean women earn less and have fewer job opportunities as they age compared with men.
Seoul is advocating for a meeting between US President Donald Trump and North Korean leadership, framing the moment as an opening for renewed diplomacy.
Deputy Foreign Minister Andrey Rudenko said relations are unlikely to improve unless Seoul steps back from participating in Western sanctions on Russia, TASS reports.
Japan's Sanae Takaichi is also set to hold a summit with US President Donald Trump during the visit.
Japanese Prime Minister Sanae Takaichi's departure was delayed by Typhoon Dujuan.
Mexico's president received South Korean President Lee Jae-myung for talks aimed at deepening investment ties, marking South Korea's first state visit to Mexico since 2010.
A senior North Korean diplomat criticized recent trilateral talks between the United States, South Korea and Japan while asserting Pyongyang will retain nuclear weapons indefinitely.
Ukraine's president said two North Korean prisoners of war were sent to South Korea, criticizing Pyongyang for using its citizens to support Russia's war effort.
Pakistan's deputy prime minister urged greater B2B ties with South Korea, as the Korean foreign minister praised Islamabad's diplomatic role in the region.
The foreign ministers of Iran and South Korea met in New York and signed a memorandum on transferring convicted prisoners, amid reported Iranian concern about Seoul's alignment with US positions in the region.
Abbas Araghchi met with his South Korean counterpart Cho Hyun on the sidelines of events in New York, according to Iran's state news agency.
The soldiers were captured in Russia's Kursk region after being deployed to support Russian forces.
Lee Jae-myung used his UN General Assembly address to propose renewed peace efforts with North Korea while also backing Security Council reform and expanded global climate cooperation.