More than 1,000 people have been reported killed by the storm, the flooding it caused and heavy rains before it hit. The World Bank estimates the affected countries will need over $2 billion to recover.

Following is an outline of the disaster, according to government and U.N. officials.

MOZAMBIQUE

Cyclone Idai made landfall on the night of March 14, near the port city of Beira, bringing heavy winds and rains. Two major rivers, the Buzi and the Pungue, burst their banks, submerging villages and leaving bodies floating in the water.