Survivors of the matatu accident that happened at Kikopey, along Nakuru-Nairobi highway, claim the driver of the shuttle was speeding and driving carelessly.
Speaking at the Nakuru PGH hospital, a survivor said the North Rift Shuttle, which was heading to Eldoret, was speeding and passengers had complained.
"The driver was overtaking carelessly and we had complained but he had none of it. He was racing against another matatu," Duncan Ndung'u said.
The death toll from the accident has also risen to six people after one more person died in hospital.
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