US President Donald Trump said South Korea will be making a "major statement" about North Korea at 7pm (1pm NZT).
After his teasing announcement to reporters, Trump was asked whether the announcement would be about talks with North Korea and he told ABC reporter Jon Karl: "It's almost beyond that. Hopefully, you will give me credit."
Trump spoke after South Korean officials briefed the White House on the outcome of their pathfinding meeting with North Korean leader Kim Jong Un.
Seoul has already publicised that North Korea offered talks with the United States on denuclearisation and normalising ties, a potential diplomatic opening after a year of escalating tensions over the North's nuclear and missile tests. The rival Koreas also agreed to hold a leadership summit in late April.
Top Trump administration officials got a chance to hear firsthand from South Korean national security director, Chung Eui-yong, who led the delegation that went to Pyongyang and met Kim on Monday.