South Korea and the United States plan to make a "major announcement" on North Korea on Thursday, officials said, after the two sides met over South Korean officials' recent meeting with North Korean leader Kim Jong-un.

South Korea's national security adviser, Chung Eui-yong, will hold a joint press briefing with White House press secretary Sarah Sanders at the White House at 7 p.m. (local time), a South Korean official here said.

The announcement comes after Chung briefed his U.S. counterpart, H.R. McMaster, on the outcome of his trip to Pyongyang on Monday and Tuesday.

This photo, captured from APTN footage, shows South Korea's national security adviser, Chung Eui-yong, at the White House in Washington on March 8, 2018. (Yonhap)

U.S. President Donald Trump told reporters in an impromptu visit to the White House briefing room there would be a "major announcement" from the South Korean side, according to news reports.

Kim reportedly offered to discuss his country's nuclear weapons program with the U.S. and promised to stop all nuclear and ballistic missile testing while talks were under way.

At the White House, Chung was joined by Suh Hoon, chief of the National Intelligence Service and one of the five members of the presidential delegation to Pyongyang.

The U.S. side included Deputy Secretary of State John Sullivan, according to the State Department. Secretary of State Rex Tillerson is currently on a trip to Africa.

Chung has said he will deliver a special message from Pyongyang to Washington.

Kim Sua  edt@koreapost.com

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