Mba said two suspects have been arrested and were being interrogated Sunday night . Weekend attacks in Nigeria 's capital kill at least five , injure more than a dozen . Score: 7 Female suicide bomber injures 5 Kano police officers . Two arrested in foiled mosque attack .
Weekend attacks in Nigeria 's capital kill at least five , injure more than a dozen . Score: 7 Female suicide bomber injures 5 Kano police officers . Two arrested in foiled mosque attack .