One suspected terrorist was killed as police fought off an attack on their camp in Mangai area, Lamu County.
A gang of about 40 men had tried to overrun a camp manned by the Border Patrol Unit on Tuesday night prompting a major battle.
This left one terrorist dead as others escaped, police said.
No injuries were reported on the side of the police.
This came hours after another group had targeted and killed 16 Kenya Defence Forces personnel and National Police Reserve in Bodhei area marking the fourth such incident in a day.
Meanwhile, a Safaricom mast at Boji Garse, Mandera South Kutulo was also destroyed Tuesday night by suspected al-Shabaab militias.
The terror group escaped soon after the attack.
There are fears more such attacks will continue in the border region and may happen in any part of the country.
On June 15, 2023, the country marks nine years since the terrorists attacked the Mpeketoni area in Lamu and killed 90 people hence fears the gang plans more such incidents now.
On Tuesday, the group targeted a passenger bus in Afaad in Mandera by shooting at it to force the driver to stop in vain, police said.
The driver sped off with a deflated tyre saving almost 50 passengers who were on board.
In Sangailu area, Garissa, authorities said the terror group targeted KDF troops with an IED killing eight of them.
This is after their vehicle ran over an IED.
The personnel were also attacked by guns, police and witnesses said.
A team of National Police Reserve that responded was met with resistance, officials said.
This left six of the NPR dead.
Another IED hit a security vehicle in Mararani Area of Responsibility killing two troops, officials said adding the attacks happened almost simultaneously.
This increased to 16 the number of security officers killed in a single day in terror-related incidents.
Security agencies have warned of worse times ahead as the attacks increase.
Officials say there has been an increase in the sightings of al-Shabaab terrorists in the area amid fears they plan a major attack.
On May 22, multi agency teams stopped a major planned terrorist attack and recovered an arsenal of weapons in an operation in Alango, Garrissa County.
Police said the team recovered six AK47 rifles, two Rocket Propelled Grenades (RPGs), PKM, two grenades other items.
The team also found warheads, 20 magazines and a belt of 200 rounds, a cell phone, and a memory Card.
This is after the team raided an al-Shabaab camp in Alango in Garissa which militants planned to use to launch attacks in the County.
More personnel have been deployed in the area in efforts to tame the attacks.
The border region has borne the brunt of repeated attacks from the militants who are at times aided by locals.
Somalia has not had a stable government after the fall of Siad Barre in 1991.
The area is near the Somalia border and the militants usually cross at will and stage attacks before escaping back.
Al-Shabaab terrorists have been attacking places in the region, especially in Mandera and Garissa counties after breaching security zones, which left dozens of civilians and security officials dead and wounded.
The terrorists have been planting explosives on the routes used by the security agencies.
Kenyan troops are in Somalia to pursue and suppress the activities of the terror group.
