Kones was appointed to the cabinet as part of a power-sharing deal after disputed elections last December.

Police spokesman Erick Kiraithe said a white pilot and a security guard were also on board the aircraft when it crashed into a small hill in the Enoosupkia Forest near Masai Mara.

Kenyan Roads Minister Kipkalya Kones. (Xinhua/AFP Photo) 

Weather conditions were reportedly poor at the time of the crash. "The plane crashed into an unoccupied house and all the four people died," Kiraithe said.

The plane, which was heading for Kericho, crashed at about 3 P.M. local time (1200 GMT) after taking off from the Wilson Airport in Nairobi.

"We are probing the cause of the crash," Kiraithe added.