Haiti Hurricane Matthew death toll rises to 800

The UN has warned it could take days for the full impact of Hurricane Matthew in Haiti to emerge, as the death toll soars to more than 800 dead.

The death toll has doubled, and may rise, as rescue teams gain access to southern areas cut off by the storm.

Matthew is the most powerful storm to hit the area in a decade.

The BBC travelled with a medical team to the southern town of Port Salut, as Nick Bryant reports.