
US Secretary of State Mike Pompeo warned on Thursday that sanctions against North Korea must be "vigorously" enforced, during a Security Council meeting attended by the foreign ministers of Russia and China.
"Enforcement of UN Security Council sanctions must continue vigorously and without fail until we realize final, fully-verified denuclearization," Pompeo said.
On Wednesday, Pompeo agreed to return to North Kora next month to push forward denuclearisation talks.
Pompeo met on the sidelines of the UN General Assembly with his North Korean counterpart, Foreign Minister Ri Yong Ho, to discuss plans for his fourth trip to the longtime US arch-enemy.
Pompeo accepted an invitation from North Korean leader Kim Jong Un to return to Pyongyang in October to move ahead on efforts for "the final, fully verified denuclearization of the DPRK," news agency AFP reported.
Pompeo will also try to arrange a second summit between Trump and Kim, whose meeting in June in Singapore was the first ever between sitting leaders of the two states.
Trump has hailed his initiative with North Korea as a signature foreign policy success and heaped praise on Kim.
(With inputs from agencies)