Inter-clan attacks in Banissa, Mandera County, left seven people dead and four injured on Tuesday.
Shobtoy villagers attacked another group with machetes and guns, according to the Standard.
Northeastern regional commissioner Mohamed Birik said the attack was a retaliation of another one that had happened in Ethiopia, where two people were killed and 100 camels stolen.
“The anger spilled to Kenya where they have killed at least seven locals in retaliation. We have deployed more security personnel to ensure calmness and justice,” he said.
Birik said the hostilities have been there for the last two weeks since the initial attack happened on the Ethiopian side.
Banissa constituency borders Ethiopia and local clans spread across the border in the two countries.
Locals fear there will be another retaliation attack.
Mandera Governor Ali Roba reportedly flew to the scene of the attack to calm down rising tension.
He called on local leaders to embrace peace and encourage their people not to attack each other.
“Peace is good for development. We don’t need such incidents here and I urge other leaders to preach peace,” Roba said.
In 2015, the two countries signed Support for Effective Co-operation and Co-ordination of Cross-border Initiatives in southwest Ethiopia-northwest Kenya, Marsabit-Borana and Dawa, and Kenya-Somalia-Ethiopia to enhance stability in the region.