More than 2,000 people gathered in Somalia's capital Mogadishu to protest against the attacks that have been described as the most deadly since the Al Shabab insurgency began in 2007.
Somalia's government has blamed the deadliest ever bombing attack on the Al Qaeda-linked Al Shabab group, but Al Shabab is yet to comment.
Kenyan opposition leader Raila Odinga, who withdrew from a presidential election re-run set for October 26, calls for protests demanding wide-ranging electoral reforms.
At least six people were injured in the plane which had 10 people on board. The plane crashed shortly after taking off from Port Bouet airport in Abidjan.
Members of the Toposa tribal militia from South Sudan are believed to be responsible for the attack in the early hours of Saturday while students at Lokichogio Mixed Secondary School were asleep in their dormitories.
Confusion reigns over upcoming election rerun after opposition leader Odinga refuses to take part, citing lack of electoral reforms. More protests are expected.
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