To South Korea now where the National Assembly has started the fourth round of hearings to investigate the corruption scandal surrounding President Park Geun-hye and her confidante, Choi Soon-sil. 

New allegations ranging from a cover-up attempt to spying on a top justice and bribery involving a senior official have been revealed. The hearing also examined the role Choi's ex-husband, Chung Yun-hoi, played. He worked for President Park when she was a lawmaker.