Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare Valley settlement in Nairobi, Kenya April 25, 2024. REUTERS/Monicah Mwangi

Juliet Akoth sits next to her belongings recovered from her flooded house after the Nairobi river burst its banks within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi

Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare Valley settlement in Nairobi, Kenya April 25, 2024. REUTERS/Monicah Mwangi

Patricia Atieno sits with her belongings recovered from the ruins of her home after the Nairobi river burst its banks and destroyed homes within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi

Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare Valley settlement in Nairobi, Kenya April 25, 2024. REUTERS/Monicah Mwangi

A cat rests on an arm-chair inside a house marooned in flood waters after the Nairobi river burst its banks within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi

Residents wade through flood waters as they recover their belongings after the Nairobi river burst its banks within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi

Residents wade through flash flood waters after Athi River burst its banks following heavy rainfall in Kwa Mang'eli settlement of Machakos county near Nairobi, Kenya April 24, 2024. REUTERS/Thomas Mukoya

Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare Valley settlement in Nairobi, Kenya April 25, 2024. REUTERS/Monicah Mwangi

Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi

Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare Valley settlement in Nairobi, Kenya April 25, 2024. REUTERS/Monicah Mwangi

Residents rest on top of their houses waiting for rescue assistance after Athi River burst its banks and marooned their homes following heavy rainfall in Kwa Mang'eli settlement of Machakos county near Nairobi, Kenya April 24, 2024. REUTERS/Thomas Mukoya

Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi

Residents stand beside their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare Valley settlement in Nairobi, Kenya April 25, 2024. REUTERS/Monicah Mwangi

Residents wade through flood waters after the Nairobi river burst its banks and destroyed their homes within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi

Residents sift through the rubble as they recover their belongings after the Nairobi river burst its banks and destroyed their homes within the Mathare Valley settlement in Nairobi, Kenya April 25, 2024. REUTERS/Monicah Mwangi

A resident stands next to his belongings recovered from his flooded house after the Nairobi river burst its banks within the Mathare valley settlement in Nairobi, Kenya April 24, 2024. REUTERS/Monicah Mwangi