Nyamira County Assembly Majority Leader, Elijah Osiemo, died in a road accident along the Mai Mahiu-Narok Road on Monday afternoon.
Two of his colleagues and their driver were seriously injured, and they were admitted at the Kijabe Mission hospital following the August 7 incident near Kedong ranch.
The accident occurred after the driver of the car that was ferrying three MCAs hit a motorcycle rider before losing control and landing in a ditch.
The deceased died on the spot while the others were rushed to Mai Mahiu health centre before being transferred to Kijabe Mission Hospital for specialized treatment.
According to Naivasha OCPD Benjamin Boen, the leaders were headed to Nairobi from Kisii when the incident occurred a few kilometres from Mai Mahiu Town.
He said that the driver of the car was overtaking a motorcycle operator who was ferrying a bag of charcoal when he hit him leading to the fatal accident.
"The car carrying the MCAs lost control after hitting the motorcycle operator and landed into a very deep ditch in the process killing one MCA," he said.
Boen added that the other two MCAs who included a woman and the driver were rushed to Mai Mahiu hospital after sustaining fractures and torn tissue injuries.
"The injured have since been transferred to Kijabe mission hospital while the body has been transferred to a private mortuary in Mai Mai," he said.