Eight Kenyan police officers were killed when their vehicle was blown up by an improvised explosive device in a suspected attack by Somalia-based jihadist group al-Shabaab, police said.The incident took place on Tuesday in Garissa county in eastern Kenya, a region on the border with Somalia, where al-Shabaab has been waging a bloody insurgency against the fragile government in Mogadishu for more than 15 years."We lost eight police officers in...