The UN human rights chief has said China must allow the wife of the late Nobel Peace Prize laureate Liu Xiaobo to move freely and leave the country if she wants to go elsewhere.<br/><br/>Speaking to reporters in New York, Zeid Ra'ad al-Hussein said he intends to meet with Chinese officials to try to ensure that Liu Xia has freedom of movement.<br/><br/>Liu died of liver cancer on 13th of this month while serving an 11- year sentence on charges of incitement to subvert government power. The current whereabouts of Liu Xia, an accomplished poet, are unknown.