Kenyan security forces on Saturday repulsed an Al-Shabaab terror attack, which left at least four police officers injured in the coastal region of Lamu.

Lamu County Commissioner Joseph Kanyiri said Sunday that the militant group from Somalia attempted to force their way into the Basuba General Service Unit (GSU) camp in Lamu East on Saturday evening, sparking a fierce fight between the terrorists and the police officers.

Kanyiri said a major security operation is underway to pursue the attackers who engaged the police officers in heavy gun battle that lasted for about 30 minutes. The militants were overpowered and vanished in the densely forest.

"We are hunting the group who escaped with bullet wounds after they failed to access the police camp," Kanyiri told Xinhua by telephone.

The injured officers were treated at local hospital and are in stable condition.

Al-Shabaab group has unsuccessfully ambushed officers within Lamu in the recent weeks, but they have been repulsed.

The militant group has changed tactics by planting Improvised Explosives Devices (IEDs) targeting security agents near Kenya Somalia border in Lamu.

A multi-agency team has managed to defeat the group on the ongoing Bony Forest operation. The team is also constructing perimeter wall to curb Al-Shabaab threats in the region.