Earlier in the day, the Department for International Development (DFID) published a program on its activities in the African nation. The report describes inequalities within the country, particularly between its northern and southern regions.
The DFID's activities also were not able to tackle unemployment rates in northern regions, that could also result in recruitment of unemployed people by Boko Haram, The Guardian reported.
According to the newspaper, the DFID is also failing to tackle corruption in Nigeria's security sector that results in growth of desertion and even in arms sale to terrorists.
Boko Haram has been active in northeastern Nigeria since 2009. Last year, the group expanded attacks into Niger, Cameroon and Chad. In March 2015, it pledged allegiance to the Islamic State militant group, outlawed in Russia and many other countries.