South Korea Will Take Case to U.N. Security Council

SEOUL -- South Korea will bring the case of its sunken naval vessel to the U.N. Security Council, the presidential office said on Sunday, as pressure mounted on North Korea which is accused of torpedoing the ship.

South Korea's President Lee Myung-bak will deliver a speech about the incident on Monday, presidential spokesman Lee Dong-kwan said.

"The president will present frameworks of measures, one about our own steps and the other about measures through international cooperation ... He will also mention a plan to bring the case to the U.N. Security Council," said Lee.

Last week, Seoul released a report that concluded a North Korean submarine had fired a torpedo that sank the Cheonan corvette, killing 46 sailors.

Reuters contributed to this report.