Nearly 200 lives have been lost and affected more than a quarter of a million in the West African state of Niger following flooding caused by heavy rains, the Civil Protection Service said on Thursday, describing the toll as one of the highest on record.

Rainy-season floods claimed 192 lives, affected more than 263,000 people and destroyed more than 30,000 homes, as well as classrooms, medical centres and grain stores, it said.

The worst-affected regions are Maradi and Zinder in the centre of the country, Dosso in the southwest and Tahoua in the west.

The rainy season in Niger, located in the heart of the arid Sahel, typically runs from June to September and routinely claims lives.

In 2021, 70 people were killed and 200,000 people were affected. The death toll in 2020 was 73.

Katiellou Gaptia Lawan, head of the national meteorological agency, said this year's heavy rains were consistent with models of impacts from climate change.

Niger is the world's poorest country, according to the benchmark of the 2020 Human Development Index devised by the United Nations Development Programme (UNDP).

Over 4.4 million people more than a fifth of the population fall into the category of "severe" food insecurity, the International Red Cross and Red Crescent said in July.