Boko Haram insurgents struck again in two points in the North-east. A female suicide bomber detonated the bomb wrapped around her at the Department of State Service (DSS) Office in Maiduguri, Borno State.
Three persons died, which included two bombers, and a passer by died in the attack while five others were injured.
Another explosion was recorded at the Power Holding Company of Nigeria (PHCN) in Adamawa State.
Boko Haram has been attacking Northern eastern town almost on a daily basis for some time now.
Deputy Senate President Ike Ekweremadu had complained openly in an interview with journalists that Boko Haram attacks had been worsening under President Muhammadu Buhari.