The United States has deployed more troops to a military base where an attack by al Shabaab militants killed three Americans on Sunday. The military's Africa Command says its East Africa Response Force has arrived at Manda Bay in Lamu County to secure the airfield. The deployment happened as al Shabaab militants killed four people early Tuesday morning near the Dadaab refugee camp in the neighbouring county of Garissa. Police spokesperson, Charles Owino, said police officers responding to the attack shot dead two militants and recovered an assortment of weapons.

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