The radical islamist group boko haram claims responsibility .

激进的伊斯兰博科圣地组织被要求承担责任。

Boko haram gunmen also shot a police inspector .

博科圣地的持枪者还杀死了一名警官。

Nigeria 's radical islamists said boko haram is claiming responsibility .

尼日利亚的激进伊斯兰教主义者表示博科圣地组织应负责任。

Boko haram increasingly seems to favor the use of suicide bombings .

博科圣地组织看上去越来越支持自杀性爆炸的使用。

Boko haram justified the assault as revenge for the arrest of several members .

博科圣地将这次袭击作为对他们成员被逮捕的报复行动。