The accident happened after a 14 seater Matatu tried to overtake a fleet of vehicles
The accident which occurred around midnight involved a 14-seater matatu which hit a trailer as it tried to overtake a fleet of vehicles.
According to Machakos County commander Samuel Mukindia the driver tried to return to his lane while overtaking before hitting a trailer from behind.
The driver of the trailer lost control, hitting another matatu from behind.
"The matatu was unable to overtake a number of vehicles before the accident that involved a multiple of vehicles happened," Mukindia told the Standard.
The accident caused a traffic snarl-up on the busy Nairobi-Mombasa Highway as traffic police cleared the wreckage of the vehicles.
The injured passengers were taken to Machakos level 5 hospital where they are currently receiving treatment.
The bodies of the deceased were taken to Machakos level 5 hospital mortuary.