Cyclone Idai has caused massive damage in Malawi, Mozambique and Zimbabwe, killing more than 150 people.
Mozambique's central port city of Beira was hardest hit, with nearly 90 per cent of the area destroyed.
"I think this is the biggest natural disaster Mozambique has ever faced. Everything is destroyed. Our priority now is to save human lives," said Mozambique’s environment Minister Celso.
UN agencies and the Red Cross have stepped up rescue efforts, and are using helicopters to deliver food supplies and medicines.

Jordanian airspace reopens after 'comprehensive review'
Iran vows to attack any ship trying to pass through Strait of Hormuz
Drones target fuel tanks at Oman’s Duqm Port
At least 42 civilians killed in Afghanistan in conflict with Pakistan, UN agency says
