The three were killed at Shakako-Moa area in Lamu County.

Read Also: Kenyan policeman killed, 2 vehicles burnt in dawn attack

Reports say the security officers have been dispatched to pursue the militants.

The attack comes only a day after Al Shabaab militants raided the Lafey Sub-County headquarters in Mandera and killed a police officer.

Two police vehicles were also set ablaze during the dawn attack on Thursday.

According to reports, the attack was carried out by more than 50 suspected Al Shabaab militants.