In recent weeks, North Korea has fired a slew of missiles and artillery shells in an apparent effort to upgrade its military capability amid deadlocked nuclear talks with the United States.
Flight data released by the South Korean and Japanese militaries suggest that the North could have tested one of its new mobile, solid-fuel missile systems it first demonstrated last year.
During a visit to Seoul on Friday, the U.S. Special Representative for North Korea Stephen Biegun told his South Korean counterpart that Washington is prepared for "constructive" talks with North Korea to implement the commitments made during the Singapore summit "simultaneously and in parallel," according to Seoul's Foreign Ministry.
Secretary of State Mike Pompeo said Tuesday the U.S. has “made clear” to South Korea that progress on disarming North Korea should not lag behind the expansion of relations between the two Koreas.
The North and South Korean militaries completed withdrawing troops and firearms from 22 front-line guard posts on Saturday as they continue to implement a wide-ranging agreement reached in September to reduce tensions across the world’s most fortified border, a South Korean Defense Ministry official said.