"Shocking and unacceptable": those are the words of South African president Jacob Zuma after the recent attacks on foreigners. Also, another tragedy in the Mediterranean - migrants turn on fellow migrants off the coast of Italy, throwing 12 Christians overboard. And Yemeni refugees continue to cross into Djibouti by the boatload. The UN High Commission for Refugees warns that tens of thousands will be descending on the country in the coming months.