UN Secretary-General, Antonio Guterres has congratulated George Weah on his victory in Liberia's presidential election and praised the peaceful conduct of the vote.<br/><br/>In a statement UN chief's spokesman said, the Secretary General applauds all Liberians for the successful completion of the elections process, which was conducted in a peaceful environment.<br/><br/>Liberia's election board certified Weah as the winner of the election yesterday, marking the country's first peaceful transfer of power after two civil wars. Weah, a former international football star, defeated Vice President Joseph Boakai in the run-off vote.