At least 45 people have been killed by flooding from heavy rains in Niger this week forcing more than 226,000 from their homes, officials in the West African nation said Friday.

Niger's western region has been hardest hit by days of rain that caused the Niger River to overflow, essentially shutting down the capital, Niamey.

Dozens of mud homes have collapsed along the river in the Kirkissoye district and rice fields are submerged.

Prime Minister Brigi Rafini, who visited the affected neighborhoods and families, was outraged.

"This situation is difficult” and should not have happened in view of the river dyke rehabilitation work carried out just before the rainy season, he said. "I thought that the capital of Niamey was safe from flooding.”

He said additional efforts will be made to protect other threatened areas.

With climate change, "we are never safe from floods,” the prime minister warned.

The government has launched an emergency appeal for populations in flood-prone areas to abandon their homes.

Since Monday, rains and flooding have affected at least 25,800 homes, according to the Council of Ministers. In addition, 64 classrooms and 24 mosques have collapsed and hundreds of granaries are damaged, the government said.

Niger suffers flooding annually, forcing many families to take refuge in schools and makeshift shelters.

In 2019, at least 57 people were killed and more than 132,500 were displaced by the rains, according to the government.