Bodies of twin babies wrapped in a polythene bag have been retrieved from Nairobi River during a clean-up activity.
It raises the number of dead foetuses retrieved from the river near Korogocho area in the last one week to eight.
Nairobi Governor Mike Sonko has called for an investigation, describing the incidents as a "worrying trend".
Four bodies of adults have also been retrieved from the river since the launch of the clean-up drive late last year.

Amazon pauses operations with 21 Air after Miami cargo plane crash
Voting starts in Philippines' south after three killed in election violence
Indonesia rescuers battle turbulent seas in search for 129 people after ship capsizes
Trump tells Ukraine's Zelenskyy to stop hitting Russian diesel
Saudi Arabia lifts warnings of potential danger in four cities