National security adviser Jake Sullivan consulted with his counterparts from Japan and South Korea on Friday as the Biden administration settles on its approach for dealing with North Korea, including its nuclear program.
The Biden administration has yet to disclose how it plans to handle North Korea, although it said this week its policy review was in the final stages.
North Korea last month fired two short-range ballistic missiles into the sea in defiance of U.N. resolutions that prohibit it from conducting such launches. Some experts saw the missile launches, the first of their kind in a year, as meant to apply pressure on the Biden administration.
North Korea has a history of weapons tests early in new administrations in the United States and South Korea. That includes a nuclear test and long-range missile test in 2009, in the first months of the Obama administration.