A woman and her daughter died on Sunday morning after a dam overflowed with floodwaters.
The dam supplies water in Wote town, Makueni county.
The two died after the water destroyed their house in Kamunyolo village
following heavy rains.
Makueni OCPD Bosita Omukolongolo said the mother and child had been sleeping when the incident took place.
"Everything in the home was washed away," he said, adding the bodies were found a short distance away.
He said the woman's husband survived as he climbed a tree and was later rescued and taken to Makueni Level 4 Hospital.
The bodies were taken to the hospita's morgue.
Makueni County Commissioner Maalim Mohammed said 15 people have died so far as a result of the heavy rains.