The Independent Electoral and Boundaries Commission (IEBC) acknowledged that three Biometric Voter Registration (BVR) kits were missing in Mandera East Constituency.
This is after suspected Al-Shabaab militants attacked an Administration Police (AP) camp in Arabia, and stole the kits.
The suspected Al-Shabaab gunmen, also made away with two laptops used in the ongoing mass voter registration drive, police vehicle and three guns.
The militants reportedly killed an officer, leaving scores injured during the early, Thursday morning attack.
IEBC Communication and Media manager Andrew Limo however assured that no data will be lost in the missing kits, owing to the instituted backup procedures.
"Further, the information contained in the BVR kits is encrypted and therefore not accessible to anyone other than IEBC,'' said Limo.
He further indicated that they still did not have full details over the unfortunate incident due to information challenges in the area.
"We are however in touch with security agencies who are helping us to ensure the safety of our staff,'' he assured.
Mandera County police Commandant Mohamud Saleh said unknown number of heavily armed suspected Al-Shabaab militants attacked the station after vandalising a Safaricom mast at Khoror Farar at around 3am.
This, he said, caused communication hitches in the region, giving the attackers ample time to conduct their attacks.