WASHINGTON (Reuters) - A South Korean delegation on Thursday hand-delivered a letter from North Korean leader Kim Jong Un to the White House for U.S. President Donald Trump, CNN reported, citing an unnamed foreign diplomatic source.

Reuters could not independently confirm the report.

South Korea’s national security adviser, Chung Eui-yong, will make an announcement on North Korea in the White House briefing room at 7 p.m. EST on Thursday (0000 GMT), White House spokeswoman Sarah Sanders said.