Cholera-struck Haiti set for presidential election

Haiti is preparing for its presidential election on Sunday, despite calls from some candidates to postpone the vote.

More than a million people are still homeless following the devastating earthquake that hit the country in January, and the UN has issued a new appeal for help to deal with the cholera epidemic.

One of most popular candidates, the former president Jean-Bertrand Aristide, has been barred from standing on a technicality.

Mark Doyle reports from Port au Prince.