Park holds meeting on North Korea's missile test

President Park Geun-hye held a rare meeting of top security officials Tuesday to discuss North Korea's recent test-firing of a submarine-launched ballistic missile (SLBM), Yonhap quoted a South Korean official as saying.

The participants included Park's security adviser, the spy chief, the defense minister, the foreign minister and South Korea's point man on North Korea, spokesman Min Kyung-wook told reporters.

Still, Min did not give any further details of the meeting.

The meeting -- the first in a year -- came three days after North Korea claimed that leader Kim Jong-un oversaw a successful underwater test-launching of a "strategic submarine ballistic missile."

The Defense Ministry described the North's SLBM launch as "very serious and worrying," and urged Pyongyang to cease the development of such missiles.