Thousands of people have taken to the streets in Haiti to demand that ex-President Rene Preval be declared the winner of last week's election.
With three quarters of the votes counted, Mr Preval is just short of the 50% percent required to win outright. But his supporters say he should be declared president without having to face a run-off next month.
Mr Preval used to be an ally of former President Jean-Bertrand Aristide, who was forced out of power two years ago.
The front-runner, who has inherited Mr Aristide's strong support among the poor, is leading more than 30 presidential candidates.
But his share of the vote has dropped to 49.1%. He held 61% of the vote after the first results were released late last week.
Another ex-leader, Leslie Manigat's has 11.7% of the vote, while industrialist Charles Henri Baker has 8%, electoral officials say.
Correspondents say there is uncertainty over when the final outcome of Tuesday's vote will be known - the announcement had initially been scheduled for Sunday evening.
This weekend, supporters marched in the Haitian capital, Port-au-Prince, insisting that Mr Preval had won.
They blew horns and pounded drums outside the headquarters of the electoral council. Many hold up photographs of the front-runner while chanting "Preval president".
"If they don't give us Preval, there will be no peace," a 46-year-old woman, who called herself Marie, was quoted by Reuters news agency as saying, reports BBC news.
Satellite images of the naval base in Vilyuchinsk, Kamchatka, confirm that Russian nuclear submarines have left the base in turn