A car bomb has killed at least 28 coast guard officers in Algeria just days after a blast ripped through a crowd waiting for the president.
Though there was no claim of responsibility in either attack, al-Qaida's North African affiliate has carried out a spate of bombings that shattered the Algerian government's efforts - successful until recently - to restore calm after a 15-year Islamist insurgency.
In the most recent blast, on Saturday, explosives planted in a van ripped through barracks in the northern coastal town of Dellys, about 50 kilometers (30 miles) from Algiers. The bombing appeared timed to kill as many officers as possible, when they were grouped together to raise the flag.
It was not clear whether the bomber was killed in the blast or escaped.