Kenya's President Uhuru Kenyatta said on Saturday that those behind an attack in which al Shabaab Islamist militants killed 148 people at a university were "deeply embedded" in Kenya, and called on Kenyan Muslims to help prevent radicalization.
His televised speech in response to Thursday's 15-hour siege at the Garissa university campus came after the Interior Ministry said five suspects in the assault had been detained, some while trying to flee to Somalia.
Four suspects were Kenyans of Somali origin, and the fifth was Tanzanian, the ministry said. The suspected mastermind, Mohamed Mohamud, a former teacher at a Garissa madrasa, is still on the run. Kenya has offered a 20 million shillings ($215,000) reward for his arrest.