At least 50 people have died as a result of heavy rains lashing Kenya since March, the country's Red Cross said Saturday.
In the latest incident on Friday night, seven people drowned about 20 kilometres (12 miles) southwest of Nairobi as rains swept the capital and its surrounding region, it said.
Two weeks earlier, another seven Kenyans from a church youth group were swept away by flash floods as they were trekking through the Hell's Gate national park northwest of Nairobi.
At least eight people perished earlier last month in a Nairobi slum when their homes were destroyed by boulders after a night of heavy rainfall.
Kenya's main rainy season between March and May often causes floods and massive displacement across the east African country.