Four people died on the spot while several others were injured following a grisly road accident at Sobea area, along the Nakuru-Eldoret highway.
Rongai police boss Japhet Kioko said the 4 am accident involved a 14- seater matatu and a truck.
He said the deaths occurred after the driver of the ill-fated 2NK sacco matatu rammed into a stationary trailer, which was parked off the highway after it developed a mechanical problem.
Kioko said two men and women were killed on the spot. The matatu was heading to Nakuru.
Survivors of the crash were rushed to Nakuru Level Five Hospital for treatment.
The accident comes two days after 12 people died in a grisly road accident at Kimende along Nairobi – Naivasha highway.
A royal Mirage Sacco matatu from Nairobi heading to Western Kenya was involved in a head-on collision with an oncoming truck.
Separately, Bomet Governor Joyce Laboso has been forced to intervene over the 8.4 million shillings bridge built in a record 14 days.
Sugutek-Chepkosotonik Bridge in Bomet East has been the centre of the controversy by the members of the public following the shoddy work done by the contractor.
Speaking after visiting the site, Laboso put on notice all contractors undertaking various construction projects in the county.
Roads and Public Works Chief Executice Officer Philip Sowek said the controversial bridge has been ear marked for demolition and will be reconstructed to approved specifications by the same contractor.
Members of the public have for the last week piled pressure for the County to account for the money used in the construction.