US President Barack Obama would hold a trilateral meeting with leaders of South Korea and Japan on March 31 to discuss the threat posed by North Korea on the sidelines of Nuclear Security Summit, the White House has said.
The officials reportedly discussed how to strengthen measures to verify country of origin of imported products in order to prevent North Korean products from entering South Korea disguised as goods produced in third countries.
An official with the Joint Chiefs of Staff says it is unclear whether the projectile crashed inland or overflew its target and landed in the sea.
North Korea test fired a short-range missile on its east coast on Tuesday, South Korea's military said, amid heightened tension over the isolated country's nuclear and rocket programs.
North Korea has fired a slew of short-range missiles and artillery shells into the sea and has threatened nuclear strikes on Washington and Seoul since the start on March 7 of the annual springtime war games between the United States and South Korea.
Military tensions have soared on the peninsula since Pyongyang carried out its fourth atomic test in January, followed a month later by a long-range rocket launch widely seen as a disguised ballistic missile test.
The projectile, which was sacked near North Korea's eastern port city of Wonsan, was reported to have traveled some 200km before landing in the sea, ROK national news agency Yonhap said.
"Without a question, there will be plenty of discussion of North Korea", he said in response to a question of whether Pyongyang's proliferation issue would be part of the agenda for the two-day biennial summit that will begin in Washington D.C. on Thursday.