Kenyan police say incidences of decomposing bodies being recovered from Yala river in the western part of the country have been going on for two years.

However, police spokesman Bruno Shioso said, investigations had yet to reveal those responsible or the motive behind the killings.

A diver who says he has been helping retrieve the corpses for the last six months believes there could be many more bodies in the river.

Families missing their loved ones have started reporting to the local police headquarters hoping to identify the bodies, some of which are badly decomposed.