. . . . . . "March 2015 Maiduguri suicide bombing" . . . . . "2015" . "March 2015 Maiduguri suicide bombing" . "an attack" . . "September 2015 Maiduguri bombing" . "Bombings, suicide bombings" . . "five suicide bomb blasts" . . . . "a series of suicide bombings" . . . . . "March 2015" .