Chinese President Xi Jinping arrived in Seoul on Thursday for talks expected to include tensions over North Korea's nuclear programme, dpa reported. Xi and his South Korean counterpart, Park Geun Hye, are expected to reaffirm the goal of a nuclear-free Korean peninsula. The two countries may also sign a set of agreements paving the way for a free trade deal. Xi's two-day state visit comes at a time of increased tension between North Korea - whose most powerful ally is China - and South Korea.