Their fresh revelation follows hours after DCI launched a probe into the incident.
84 facilities in the county are expected to use drones to distribute medicine.
Ruto is on a state visit to China
The new loan comes barely a week after Kenya secured another Ksh77 billion credit.
KEMSA has been a subject of headlines over tendering and supplies.
The move comes after several complaints filed at the DCI headquarters.
Kenyan men have been accused of adopting outdated toxic traits.
Kenya's exports to the US are estimated at around Ksh109.7 billion (784 million USD).
The DCI revealed the case was escalated to the special unit.
Nyong'o blamed Ruto for deteriorating devolution in a hard-hitting letter.
