All the passengers on board died when the plane crashed in the Kericho country, Rodgers Mbithi, National Police Air Wing Commander, said.
The plane was carrying the passengers, one Kenyan, four foreigners, from Mara region in the Rift Valley to Lodwar town in Turkana, a northwesternmost county in Kenya.
Mbithi said the nationalities of the victims, three men and two women, are yet to be identified.
The cause of the crash is still unknown.
The plane belonged Safarilink Aviation, a local safari airline in Kenya.
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