Torrential rains and flooding have killed more than 100 people in South Africa, Mozambique and Zimbabwe, and authorities warned Friday that more severe weather was expected across several countries in southern Africa.

South Africa has reported at least 19 deaths in two of its northern provinces following heavy rains that began last month and led to severe flooding.

In neighbouring Mozambique, the Institute for Disaster Management and Risk Reduction said 103 people had died in an unusually severe rainy season since late last year.

Zimbabwe’s disaster management agency said that 70 people have died and more than 1,000 homes have been destroyed in heavy rains since the beginning of the year, while infrastructure including schools, roads and bridges collapsed.

Flooding has also hit the island nation of Madagascar off the coast of Africa as well as Malawi and Zambia. Authorities in Madagascar said 11 people died in floods since late November.

The United States' Famine Early Warning System said flooding was reported or expected in at least seven southern African nations, possibly due to the presence of the La Nina weather phenomenon that can bring heavy rains to parts of southeastern Africa. (AP)