At least seven people sustained serious injuries following a grisly road accident on Saturday morning along the Mbaria-Kaniu road in Naivasha town.
Those involved in the accident were five hotel workers, an ambulance driver and a boda boda rider.
The victims have been rushed to the Naivasha sub-county hospital.
According to Stephen Kirigi, a witness, the driver of the ambulance which belongs to the prison department was headed to Naivasha Maximum Security Prison less than three kilometres away when the accident occurred.
"The driver of the ambulance who was [allegedly] speeding at the time first hit a motorcyclist, lost control and rammed into an oncoming vehicle," he said.
Investigations have been launched after reports emerged that the ambulance 's driver was under alcohol influence.