Yonhap News SummaryThe following is the second summary of major stories moved by Yonhap News Agency on Monday . ---------------- Pyongyang gov ' t behind murder of Kim Jong - nam : spy agency SEOUL -- South Korea ' s spy agency said Monday the North Korean government was behind the assassination of Kim Jong - nam , adding that those involved worked for the country ' s foreign ministry and secret police . During the meeting with lawmakers , the National Intelligence Agency said four of the eight suspects behind the murder worked for Pyongyang ' s Ministry of State Security , with two others being from the foreign ministry . ----------------( 2 nd LD ) Court hears final arguments in Park ' s impeachment trial SEOUL -- The Constitutional Court on Monday heard the final arguments of President Park Geun - hye and the National Assembly as it pushed to complete its review of the legality of the president ' s impeachment by early March . Park did not appear at the final hearing , but she highlighted her efforts to serve the nation in a statement read by one of her defense attorneys . ----------------( 2 nd LD ) FM Yun to raise murder of N . K . leader ' s brother at U . N . meetings GENEVA / SEOUL -- South Korea ' s top diplomat has said he will raise North Korea ' s apparent involvement in the murder by toxic agents of its leader Kim Jong - un ' s half brother during U . N . meetings on human rights and disarmament . Foreign Minister Yun Byung - se told reporters on Sunday in Geneva that the incident added a new dimension to the North ' s violations of human rights and international norms , which deserve more stern actions by the international community . ---------------- Samsung Group to abolish all groupwide tasks SEOUL -- Samsung Group , South Korea ' s largest business conglomerate , plans to abolish its groupwide tasks and let affiliates independently make business decisions , a group official said Monday . The plan is in line with Samsung ' s move to abolish the group ' s key future strategy office , which has been responsible for coordinating key affairs among affiliates . ----------------( LEAD ) Seoul stocks down 0 . 41 pct on foreign selling SEOUL -- South Korean stocks finished lower Monday as foreign investors dumped major tech stocks to lock in recent gains , bucking overnight gains in Wall Street . The Korean won lost against the U . S . dollar . The benchmark Korea Composite Stock Price Index ( KOSPI ) lost 8 . 60 points , or 0 . 41 percent , to close at 2 , 085 . 52 . Trade volume was slim at 333 . 52 million shares worth 4 . 08 trillion won ( US $ 3 . 59 billion ) , with losers outnumbering gainers 466 to 326 . ----------------( 5 th LD ) Opposition parties to seek impeachment of acting president SEOUL -- South Korea ' s liberal opposition parties said Monday they will push for the impeachment of the acting president after he refused to extend an independent probe into a corruption scandal involving President Park Geun - hye . The main opposition Democratic Party , as well as the People ' s Party and the Justice Party , said it will cooperate and seek to oust Acting President and Prime Minister Hwang Kyo - ahn . ----------------( LEAD ) Hyundai Heavy shareholders OK spinoff plan amid labor union opposition SEOUL -- Shareholders of Hyundai Heavy Industries Co . , South Korea ' s major shipbuilder , gave the green light on Monday to the company ' s overhaul scheme to split the troubled shipbuilder in an effort to regain financial health amid strong opposition from the labor union . The preliminary shareholder meeting , held earlier in the day , passed the proposal to separate the shipyard , once the world ' s largest , into six independent businesses , the company said . ( END )