North and South Korea opened their first official talks in two years on Sunday at a border village "without argument", the South said. The meeting in Pammunjon, where the armistice was signed in the 1950-53 Korean War, was taking place hours after U.S. President Barack Obama and Chinese leader Xi Jinping agreed at a summit that the North had to abandon its nuclear programme. The hour-long morning session appeared to pave the way for ministerial-level discussions next Wednesday. Such a meeting would be the first such encounter in more than six years, according to a report of Reuters. A spokesman for the South's Unification Ministry, said the two sides discussed technical issues for the ministerial meeting, including the venue and size of delegations. "After the morning meeting, we both agreed to keep discussing," Kim Hyung-suk told reporters at the ministry in Seoul.