Haiti under pressure to amend initial vote results

* U.N. urges election body to accept OAS review of results

OAS report recommends changing preliminary vote results

* Uncertainty follows Duvalier return, eyes on Aristide

By Joseph Guyler Delva and Allyn Gaestel

PORT-AU-PRINCE, Jan 20 (Reuters) - The United Nations and Western powers urged Haiti's authorities on Thursday to amend the preliminary results of flawed November elections, warning that failure to do so could lead to more political turmoil.

President Rene Preval's government and Haiti's electoral authorities are under intense pressure to accept a report by Organization of American States experts that recommends dropping a government-backed presidential candidate from a second-round runoff vote, in favor of another candidate.Read More