FILE PHOTO: U.S. National Security Advisor Jake Sullivan speaks to the media about the war in Ukraine and other topics at the White House in Washington, U.S., March 22, 2022. REUTERS/Leah Millis
ABOARD AIR FORCE ONE (Reuters) - The United States is watching "very closely" the continued possibility of a nuclear test by North Korea and will have a robust response, U.S. national security adviser Jake Sullivan said.
"We're also watching very closely the continuing possibility of a nuclear test, to which we would also have a robust response," he said.
