The Horn of Africa is one of the regions most vulnerable to climate change, and extreme weather events are becoming increasingly frequent and intense.

"Since 15 April, flash floods due to heavy to moderate rains in Somalia have affected over 45,000 people and swept away four people including two children and a woman," said UN humanitarian agency OCHA, in a report published April 30.

It warned the flooding came at a time when NGOs -- often the frontline responders -- are "facing crippling funding reductions that have severely limited their ability to respond to emerging needs".

It detailed that roughly 6,000 people were displaced in the Middle Shabelle region after the Shabelle River burst its banks on April 29.

Families have sought refuge in makeshift camps on higher ground, it said, but are "facing acute shortages of food, clean water, and healthcare".

"The flooding swept away homes and inundated crops, disrupting livelihoods in one of Somalia's most agriculturally vital regions," OCHA also noted.

The day before, some 9,500 people were also displaced in central Galmudug State after light to moderate rains caused flash floods, it said.

The floods come as the international humanitarian community grapples with the United States' decision to dismantle much of USAID, the country's main foreign development arm.

"Currently, many humanitarian organizations in areas where the flash flooding is occurring have been forced to pause, scale back, or even close their critical programmes," OCHA noted.

Somalia was hit by intense floods in 2023. More than 100 people were killed and over a million displaced after severe flooding caused by torrential rains linked to the El Nino weather pattern.