At least 120 people are tested for cholera in the capital of Haiti, Port-au-Prince.
- Health officials are concerned about the spread of the Zika virus in Haiti, which suffered the worst epidemic of cholera in recent history following the deadly 2010 Haiti earthquake. The U.S. Centers for Disease Control and Prevention reports there are 2,214 suspected cases as of April 23. But new research indicates the virus has been present since 2014. The actual infection rate remains unknown since the poor, densely populated nation lacks routine data systems that can track and document disease outbreaks.
- Voters in Haiti go to the polls for the first election in four years with some polling places in the capital Port-au-Prince forced to close due to violence.
- At least 26 people are killed after a truck's brakes fail along a busy street in Port-au-Prince, Haiti.
- Rainstorms in southern Haiti trigger floods and mudslides, resulting in at least 23 deaths with the capital Port-au-Prince worst affected.
- A ferry sinks off the coast of Haiti near Port-au-Prince resulting in at least five deaths and seven people missing.