At least three people were killed and several others injured in Mandera following clashes between two rival clans.
Properties worth millions of shillings were also burnt down in the clashes that started on Wednesday night.
Mandera County Commissioner Michael Ole Tialal on Thursday evening said among the dead was a prominent businessman in the town.
He said three people were seriously injured while 27 others were slightly injured.
Acting police spokesman Charles Owino said additional officers had been sent to Mandera to beef up security in the area.
There were reports that about 18,000 members of the Gare community had recently moved to the area causing tension among residents.
In November last year, four people from the Gare community were killed in a gun attack near Rhamu town, which escalated the animosity between the rival Garre and Degodia communities.
Last September, another 20 people were killed and hundreds displaced in attacks.
The Garre blamed rival Degodia community for the attacks.
Mr Owino urged political leaders and aspirants to educate their supporters on the need to maintain peace during the electioneering period.
“The skirmishes which were experienced in Mandera are under control and local leaders are meeting to agree on a formula to maintain peace in the region,” he said.
Meanwhile, one person was killed and several others injured after a bus belonging to the same company as the one that killed 34 passengers on Wednesday morning was involved in a head-on collision with a saloon car that was heading to Mandera.
The accident happened near Chuma Mrefu, Kotulo.
The victims were taken to Kotulo dispensary where one of them was confirmed dead on arrival.