The statement said that the attempted breach was successfully repulsed.
"Four terrorists bodies have so far been found. The airstrip is safe. Arising from the unsuccessful breach a fire broke out affecting some of the fuel tanks located at the airstrip," the statement said.
KDF said that the fire has been put under control and standard security procedures are now on-going.
"They have attacked Manda airstrip in Lamu, which is just next to the military camp that hosts military personnel from many countries including Kenya and the U.S. We are informed that fighting is still ongoing," the military source told Reuters.
He said the fighters were trying to access the base from the airstrip.
Al Shabaab, an al Qaeda-linked Islamist insurgent group fighting to overthrow the weak, U.N.-backed Somali government, also put out a statement promising further updates.
"An elite group of soldiers from Harakat Al-Shabaab Al Mujahideen’s ‘Martyrdom Brigade’ launched a daring dawn raid on a U.S. naval base known as ‘Camp Simba’ in Lamu County, Kenya.
"...the base is home to hundreds of U.S.military personnel and Kenyan soldiers and serves as one of the many launch pads for the American crusade against Islam in the region," the al Shabaab statement said.
