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More than 600 people are now known to have perished in the in a decade in , according to a new toll released Sunday.

The disaster had also forced more than 1.3 million from their homes, said a statement by Nigeria's ministry of humanitarian affairs, released on Twitter.

"Unfortunately, over 603 lives have been lost as of today October 16, 2022," said Humanitarian Affairs Minister Sadiya Umar Farouq.

The previous toll from last week stood at 500, but the numbers had risen in part because some state governments had not prepared for the floods, said the minister.

The flooding also completely destroyed more than 82,000 houses and nearly 110,000 hectares (272,000 acres) of farmland, said Umar Farouq.

While the rainy season usually begins around June, the rainfall had been particuarly heavy since August, said the National Emergency Management Agency (NEMA).

In 2012, 363 people died and more than 2.1 million were displaced by flooding.

Sub-Saharan Africa is disproportionately affected by climate change and many of its economies are already struggling from ripple effects of the

Rice producers have warned that the devastating floods could impact prices in the country of some 200 million people where rice imports are banned to stimulate local production.

The World Food Programme and the UN's Food and Agriculture Organization said last month that Nigeria was among six countries facing a high risk of catastrophic levels of hunger.