"As of yesterday, the death toll from this disaster has risen from 225 to 326, the number of people displaced has more than doubled to 183,159," Malawi's President Lazarus Chakwera said in the devastated southern region near Blantyre.

Chakwera has called for global aid as rescuers continued to seek survivors Thursday from the flooding and mudslides caused by torrential rains this week.

The cyclone first struck southern Africa in late February, striking Madagascar and Mozambique but causing only limited damage in landlocked Malawi.

The storm then moved back out over the Indian Ocean, where it drew more power from the warm waters before making a rare course reversal to slam into the mainland a second time.

The rains have eased since Wednesday but Freddy is still on track to become one of the world's longest tropical storms.

In Mozambique, the storm has caused at least 63 deaths and displaced 49,000 people, according to official figures Wednesday.

President Filipe Nyusi has also appealed for aid to rebuild destroyed infrastructure.

Meteorologists say the cyclone is exceptional in its duration and has characteristics consistent with warnings about climate change.