Haiti's President steps down leaving no successor
Haiti's President Michel Martelly has stepped down at the end of his term amid tension over how he is to be replaced.
No successor has yet been chosen as opposition supporters challenge a deal to select an interim leader.
The last-minute deal aims to prevent the country from plunging into an immediate power vacuum.
In a speech, Martelly said his biggest regret was that January's presidential election had been postponed.
The runoff vote to elect his successor was shelved because of fears of violence and allegations of fraud.
The first day of carnival has been called off over the threat of more opposition protests.
Haiti, which is the western hemisphere's poorest country, is still struggling to recover from a devastating earthquake in 2010.