Nigerian officials estimate that over 500 people are still missing and presumed dead, according to news reports.

Deputy Secretary-General Amina Mohammed, a former Nigerian Government minister, said she was heartbroken at the extent of the loss and damage.

“My deepest condolences to all those affected – especially the families who have lost loved ones. My prayers are with you,” she said.

UN relief operation

United Nations agencies and partners are working alongside the Nigerian Government to provide essential humanitarian aid to individuals and households in Niger State who have been affected.

Beginning 29 May, heavy rains in the Local Government Area of Mokwa – known as a trading hub – prompted flash flooding which flattened entire neighbourhoods.

Hundreds were killed, thousands displaced and key roads and bridges were damaged, disrupting movement and economic activity.

Nigeria’s rainy season extends from April-October, making it particularly prone to flooding, which has become more severe in recent years.

Climate change factor

In 2024, a flood in September killed 230 people in Borno state in eastern Nigeria and displaced over 600,000 people. In 2022, severe flooding across the country impacted 34 out of the 36 states, killed hundreds and displaced more than 1.3 million.

A recent report from the UN weather agency (WMO) said the worsening severity is related to climate change and increasing surface and water temperatures, all of which is taking a high toll throughout the African continent.

Agencies on the ground

According to UN Spokesperson Stéphane Dujarric Nigerian authorities are leading recovery efforts and UN agencies and partners are providing supplementary assistance.

The World Health Organization (WHO) is preparing to ship medicine and medical equipment to supplement and support existing primary care systems.

For their part, the International Organization for Migration (IOM) is providing materials for temporary shelter and other non-essential food items.

The UN reproductive health agency (UNFPA) is working to establish temporary clinics and safe spaces for women and girls displaced by the flooding. In these spaces, women can access maternal and reproductive health services, dignity kits and psychosocial assistance. UNFPA is also working to deploy midwives and nurses.

Mohammed M. Malik Fall, resident and humanitarian coordinator in Nigeria, commended Government efforts to respond to the humanitarian situation in Mokwa and said that the UN “stands ready to support the response.”