The government of Haiti says the bodies of at least 75,000 people have so far been buried in mass graves following the earthquake that struck more than a week ago.
International aid agencies have raised concerns about what is happening.
The International Committee of the Red Cross says it is important for surviving family members to know what happened to relatives and where they are buried.
More than half of Haiti's nine million people are thought to practise some form of Voodoo.
Max Beauvoir, head of the country's main organisation of Voodoo priests, also has concerns.
First broadcast 22 January 2010