Tunisia declares state of emergency after deadly bus blast

Tunisia's President Beji Caid Essebsi declared a nationwide state of emergency and a curfew in the capital after a bomb attack on a presidential guard bus killed at least 12 people. A security source at the site said "most of the agents who were on the bus are dead" after the attack in Tunis, which has become a target of jihadist violence since the 2011 revolution. No group immediately claimed responsibility for the bombing, which a ministry official said also wounded 20 people when it went off