Security officers are not responsible for the killing of hundreds of animals in Laikipia county last weekend, IG Joseph Boinnet has said.
Photos reportedly from Laikipia have been circulating on social media showing dead livestock with gunshot wounds.
But Boinnet said on Tuesday that the animals were "probably killed by bandits".
"The operation is going on according to our plan. That's what I can tell you for now," said the Inspector General of Police.
"When I say the operation is going on well, I don't want to be misconstrued as saying certain unfortunate things are part of the plan. They are not. What I meant was that from our perspective we are executing the operation as we planned it - to drive out bandits - and we are succeeding," he clarified.
He also said police were receiving weapons through voluntary disarmament but did not have the exact figure of guns surrendered.
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The government has declared seven areas in Laikipia county "dangerous and disturbed" following persistent raids that have resulted in deaths.
They are Rumuruti, Ol Moran, Kirimon, Ng'arua (Mithiga and Matuiku locations), Marmanet (Salama location), Segera and Mukogodo East divisions.
"This notice shall take effect from the date of publication and shall remain in force for a period of 30 days subject to revocation and or extension,"Interior CS Joseph Nkaissery said in a gazette notice dated March 7.
Nkaissery said the decision was reached after consultations with the National Security Council.
In this regard, Britain advised its citizens to be vigilant in case they travel to the stated areas.
"The Foreign and Commonwealth Office advises against all but essential travel," the British High Commission said in a statement.
Numerous have taken place in drought-stricken Laikipia region in recent months.
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