Noah Mwivanda, a police brass hat in Lamu County, said Tuesday's blast happened between Mararani and Kiunga towns.
There was no immediate claim of responsibility.
The deadly incident bore the hallmarks of similar bombings blamed on Somalia's al-Shabaab
...
Somalia's version of the Taliban, functioning as an arm of al-Qaeda...gang, which has previously targeted security forces in the region.
It increases the corpse count from homemade explosives in the last three months to 46, with coppers as the majority of fatalities.