Partial official results show opposition leader Peter Magyar's party dominating the vote, in a bombshell election result with repercussions around Europe and beyond.
Vice President JD Vance told reporters that "we have not reached an agreement" following face-to-face talks with Iranian leaders and Pakistani negotiators.
The incident took place at the Citadelle Henri, also known as Citadelle Laferriere, a 19th-century fortress and tourist spot in the northern town of Milot.