UN Secretary General Ban Ki-moon congratulated the Haitian people and authorities for the successful presidential runoff.
Ban noted that the new administration will have to step up in the reconstruction of the country after the terrible tragedies that affected Haiti in 2010.
In his message to Haitians on Monday, Ban ki-moon reiterated the UN will to continue assisting their country to building a prosperous future.
The United Nations has a contingent, comprised by 13,000 soldiers and police officers. The Security Council increased to 3,500 the number of soldiers a week after the quake shook Haiti.
Mirlande Manigat and singer Michel Martelly, representing the Democratic and Peasant's Response Parties, respectively, were running for the presidency in the runoff. preliminary results of the second round will be announced on March 31.
The polls showed Martelly as favorite with 57,37 percent of the voters intention, while Manigat held 40,57 percent.