Jos , Nigeria ( CNN ) -- Nigerian authorities said they have five suspects in custody Sunday after a wave of attacks over the weekend in the city of Kano . Five people were killed and eight others injured when an explosive device was lobbed over a wall in Kano 's predominantly Christian Sabon Gari district . The attack occurred as parishioners exited St. Charles Catholic Church following Sunday services , according to Nigerian police force spokesman Frank Mba . Mba said three suspects have been arrested `` for their complicity in the attacks . '' A suicide attack occurred earlier in the day at another location in Kano . A woman detonated a bomb after police stopped her and sent for a policewoman to come perform a search , according to Mba . Five officers were injured in that attack , which killed the bomber . Two suicide blasts kill 40 in Nigeria . In a third incident , authorities were tipped off to an explosive-laden car parked near the Isyaku Rabiu mosque in another section of the city Saturday evening . Kano police spokesman Magaji Musa Majia said the bomb squad was able to successfully defuse a remote-controlled improvised explosive device discovered in its trunk . Mba said two suspects have been arrested and were being interrogated Sunday night . Hassan John reported from Jos ; Aminu Abubakar reported from Kano . CNN 's Nana Karikari-apau contributed to this report .
Weekend attacks in Nigeria 's capital kill at least five , injure more than a dozen . Three arrested after church bombing kills 5 . Female suicide bomber injures 5 Kano police officers . Two arrested in foiled mosque attack .