Police have accused Boni residents of supplying food and water to al Shabaab militants hiding in the forest.
On Tuesday, Lamu county boss Muchangi Kioi said some of the people are using proceeds from illegal logging and charcoal burning to fund the terror group.
But Kioi noted that police were conducting a massive crackdown on the loggers and charcoal burners.
“The fact that people burn charcoal and cut timber to fund such acts is unimaginable. That’s why we have launched this crackdown. We have already arrested four suspects,” he said.
Terror attacks in the area have left hordes of security officers and civilians dead.
At least 250 bags of charcoal and tonnes of timber were recovered on the first day of the operation at Ziwa la Kengo, Ziwa la Taa and Maisha Masha areas.
It comes days after Kenya Forest Service officers in the county recovered eight tonnes of Bambaru wood with a street value of Sh800,000 at Maisha Masha area in Witu division.
Kioi said: “The public should understand that we will not entertain logging or any other activity which are against the laws of this country.”