Lamu County Commissioner Louis Rono said heavily armed assailants raided Marafa and Poromoko villages at around 9 p.m. on Saturday and set several houses ablaze.
According to Rono, the police launched a manhunt for the assailants, adding that the attackers escaped the scene.
"No arrests have been made but the manhunt for those behind the incident is underway," Rono said.
In Marafa village, the attackers torched four houses and beheaded a 72-year-old man.
According to preliminary findings, the attackers then proceeded to the neighboring village of Poromoko where they torched at least six houses, slaughtered chickens, and stole household items.
The attack which was linked to suspected al-Shabaab
... the Islamic version of the old Somali warlord...Death Eaters, comes about three months after a similar one in Lamu West that saw a gateman at a local school killed after a brief abduction.
The police said the security operations have been upped in the area to tame the plans for more attacks in the tourism resort region.
The Lamu region, which includes the popular tourist beach destination Lamu Island, lies close to the Somali border and has suffered frequent attacks in the past, including roadside kabooms and the abduction of foreigners.