Suspected militants kill 3 in mortar attack on U.N. base in Mali

By Tiemoko Diallo and Adama Diarra BAMAKO (Reuters) - Suspected Islamist militants attacked a U.N. base in the northern Mali town of Kidal with mortars and machine guns on Friday, killing three peacekeepers and wounding 30, United Nations and separatist sources said. The attack is a fresh sign of instability in the desert region that is home to Islamist groups including al Qaeda in the Islamic Maghreb who have staged increasingly bold raids in recent months and have targeted the U.N. base severa