At least 15 people are feared dead after a bus ferrying students overturned on Wednesday evening.
The students were travelling to Nyamache from Itumbe in Kisii county when the accident occurred.
Gucha base commander Mark Ondego confirmed the accident, adding that eye witnesses had reported that the bus lost control before rolling several times.
Late in to the night, rescuers were still trying remove survivors from the wreckage, some of whom were rushed to the Kisii Level 5 hospital for treatment.
Among the bodies that had been retrieved from the ill-fated bus included those of the bus driver, four students and two teachers.
The victims were travelling to Nyamache for the annual school games.
President Uhuru Kenyatta on Wednesday evening sent a message of condolence to the families, relatives and friends of the accident victims and expressed concern over road carnage in the country, calling on police to ensure full enforcement of traffic laws.
Kisii county governor Mr James Ongwae and the nominated senator Janet Onywera visited the survivors at the Kisii Level 5 hospital to console those admitted to the hospital.
The four students, a teacher and the school bus driver died on the spot.
Unconfirmed reports indicated that the death toll was likely to rise as most of the victims at the scene were in critical condition, according to sources at the Kisii level five hospital.
The students, drawn from five schools within Kisii County, were travelling from Marani to Nyamache district for the county games to be held on Thursday.