Four people died following a mudslide at Chesogon area at the border of West Pokot and Elgeyo Marakwet on Saturday.
The mudslide was caused by heavy rainfall that has been experienced in the area over the past days.
Rift Valley regional commissioner George Natembeya said 23 other people are still missing.
The government has said three other people who sustained serious injuries have been airlifted to Eldoret for treatment.
“A search and rescue operation is currently in progress and already three persons who suffered serious injuries have been rescued and arrangements are being made to airlift them to Eldoret for specialized treatment,” government spokesperson Col. Cyrus Oguna said in a statement.
Oguna said that Government had initiated a response and has dispatched a Multi-agency team comprising officers from the Ministry of Interior and Coordination of National Government, and the Ministry of Devolution & the ASALS to the area to gather information and advice on necessary interventions.