The parties also discussed their positions on North Korea's nuclear and missile programs and agreed to maintain a tough stance against any further "provocations" by Pyongyang, the agency reported.
Tensions on the Korean Peninsula escalated after North Korea successfully carried out a hydrogen bomb test in early January and put a satellite into orbit a month later, violating UN Security Council resolutions and triggering condemnation from the international community.
Earlier in the day, US Department of Defense announced that the scheduled joint ballistic missile defense drills between Washington, Tokyo and Seoul, which are due to be held on the sidelines of the Rim of the Pacific (RIMPAC) exercises in June and July, will be aimed at improving coordination against Pyongyang's "provocations."
