Four police officers were on Friday killed when a vehicle they were travelling in was attacked by gunmen in Milihoi, Lamu county.
Reports indicate that an unknown number of police officers were injured in the attack that happened between Mkunumbi and Hindi.
The officers also fought back and reports indicate a number of the attackers believed to be al-Shabaab militants were injured.
The gang is believed to have attacked the police Landcruiser using a rocket-propelled grenade or an improvised explosive device.
It is the same area where former PS Mariam Elmawy was attacked and killed in 2018.
Witnesses said the attack happened at about 9 am.
This was as the police vehicle moved towards Lamu direction in a convoy.
A contingent of officers stormed the scene and reported seeing bloodstains into the nearby forest amid a hunt on the attackers.
The area is among those under the dusk to dawn curfew.