A senior presidential official said Tuesday that the government did not reach any agreement with a North Korean delegation or convey proposals either to the North or the United States.

The North Korean delegation led by Kim Yong-chol, vice chairman of the North Korean ruling party's Central Committee, returned home Tuesday after visiting the South for the PyeongChang Olympics closing ceremony.

Speaking to reporters after the delegation left, the presidential official said that the government candidly delivered South Korea's ideas to the North, which also expressed its thoughts to Seoul.

The official said the overall dialogue touched on the issue of various conditions to realize talks between the North and the U.S. and what steps can be taken for that to happen.

The official said that South Korea is mediating between the two sides and is aware of their respective stances to some degree but what's important is to build trust with the North and convey Washington's position to Pyongyang.

The official said the government needs time to analyze what it has heard from the North Korean delegation and after that is done, the U.S. will be briefed on the situation.