Foreign Minister Kang Kyung-wha has vowed to concentrate diplomatic efforts for the success of the North Korea-U.S. summit.

Speaking at a plenary meeting of the National Assembly's Foreign Affairs and Unification Committee on Thursday, the top diplomat said that rather than being affected by every single situation, it's necessary to continue the dialogue momentum while calmly observing North Korea's intentions.

She promised to continue efforts to coordinate the stances of North Korea and the U.S. as denuclearizing the Korean Peninsula is the key agenda for their summit talks.

She expects that Pyongyang and Washington will continue contact right up to the summit meeting next month to coordinate what they will discuss at the summit.

Minister Kang pledged to focus on diplomatic efforts through June to achieve complete denculearization and peace on the peninsula.

She also promised to utilize the South Korea-U.S. summit scheduled for Tuesday to explore creative ways so that Washington and Pyongyang can reach a realistic agreement.

She said efforts will also continue to have China, Japan and Russia play constructive roles for the denuclearization of and peace on the Korean Peninsula.