(Reuters) -The death toll from a landslide in western Kenya's Rift Valley has risen to 22, a government spokesperson said on Sunday, following heavy rains on Saturday.

Twenty-nine people were still missing and 21 others were receiving treatment after devastating floods in Elgeyo-Marakwet County, government spokesperson Isaac Mwaura said in a statement.

Hundreds of people have been killed in recent years in landslides and flooding in Kenya, with scientists saying climate change is causing more intense and frequent extreme weather events.

In the worst incident last year, 61 people were killed in a mudslide and flash floods in central Kenya.

Landslides in the east of neighbouring Uganda have also killed at least 13 people in the last week, according to the Uganda Red Cross.