The attack on Kenya’s Wargadud police camp left two communications towers destroyed and police vehicles carjacked.
Kenyan security officials declined VOA’s request for a comment, however, Abdul Haro, Mandera South’s Member of Parliament confirmed the incident.
"I can confirm last night there was a terror attack in my constituency in a place called Wargadud and there are some casualties,” Haro said.
“Also, there was another attack a few kilometers away in a place called Iresuki and a probing attack in Elwak," he added.
The attacks took place amid a tour of the northeastern region by Kenya’s defense secretary, Aden Duale, who set out to meet residents and security officials.
Addressing residents of Wajir County, Duale said the East African nation will fight militants to secure its territory.
"We will fight al-Shabab along our borders. We will fight and take the war to them in Somalia because Kenya has a moral responsibility to bring peace and stability along the countries in the horn of Africa," Duale said.
Last week, Kenyan security forces killed 23 suspected al-Shabab militants during an ambush at the Orgene area, in Kenya's Mandera County. The encounter also left six Kenyan soldiers dead and eight others injured.
Earlier this year, Kenya announced plans to reopen its border with Somalia that had been closed for over a decade.
Plans to reopen the Kenya-Somalia border were suspended after increased attacks by al-Shabab.
The militant group previously carried out a spate of attacks across Kenya to drive authorities to withdraw Kenyan troops from African Union-led peacekeeping forces in Somalia.