Ziwani Ward MCA Millicent Wambui Mugadi was the sole survivor in the accident.
Millicent is admitted at the St Mary’s Hospital, Gilgil.
The personal car which was heading to Nairobi was overtaking a fleet of vehicles when it rammed head-on into an oncoming trailer.
Minority Chief whip Hashim Kamau said that Mugadi sustained multiple fractures and plans are underway to airlift her to Nairobi for specialised treatment.
They were returning from a friend’s burial in Western.
The accident caused a major traffic snarl-up on the busy road.Police said occupants from the trailer escaped with slight injuries.