Following up on their trilateral summit in the Netherlands last week, South Korea, Japan and the U.S. have agreed to hold chief delegate six-party talks next week to discuss the continued nuclear threat posed by North Korea.
According to diplomatic sources in Washington, the delegates from the three countries will discuss joint countermeasures after North Korea hinted at conducting a "new form" of nuclear test.
Seoul has yet to appoint a chief delegate for the talks.
The post has been vacant since the previous official was named vice foreign minister.
The last time the three countries held six-party delegate talks was in November of last year.
The actual six-party talks, involving the two Koreas, the U.S., China, Japan and Russia, have not been held since December 2008.