The Department of State Services has arrested 20 suspected Boko Haram commanders in Lagos, Kano, Enugu, Plateau and Gombe states.
The suspects, who were arrested between July 8 and August 25, 2015, include the masterminds of the suicide attacks in Potiskum, Kano, Zaria, and Jos.
The DSS in a statement by an official, Tony Opuiyo, on Sunday in Abuja, said those arrested were notable commanders and frontline members of the notorious group from different parts of the country.