A 12-year-old pupil was killed in an accident along the Keroka-Sotik highway in Nyamira County.
Police said four other pupils were injured after a speeding salon car hit them in Metamaywa area.
The children were crossing the road on Tuesday evening when the car knocked them down.
They were rushed to Keroka sub-county hospital where the female pupil died while being attended to.
The other four were attended to and transferred to Kisii level six hospital.
The car that was involved in the accident was detained at the Matutu police station pending a probe.
Elsewhere in Emorjoi village, Mulot, Narok County, a form two student was electrocuted after she touched a naked live wire.
The student at Emorji Day Secondary School was heading home when she accidentally touched a Kenya Power live wire that had fallen due to a heavy downpour on Tuesday evening.
Witnesses said she was badly burnt.
She was rescued and rushed to Baraka Hospital where she was pronounced dead on arrival.
The body was moved to a mortuary in the area. Officials from police and KPLC are investigating the tragedy.
