The United Nations accused Ivory Coast leader Laurent Gbagbo of harassing foreign diplomats and peacekeepers on Monday, as tension rose steeply after reports of widespread killings and rights abuses. Gbagbo has refused to cede power to his rival Alassane Ouattara, a rival that the international community recognises as the winner of last month's presidential election, and violence has erupted in the streets of Abidjan.Duration: 02:03