UN OHCHR Office of the United Nations High Commissioner for Human Rights [to 6 June 2015]
http://www.ohchr.org/EN/NewsEvents/Pages/media.aspx?IsMediaPage=true

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Zeid calls for justice for rights abuses in Nigeria
GENEVA (5 June 2015) – UN High Commissioner for Human Rights Zeid Ra’ad Al Hussein on Friday said interviews with individuals who had fled or were rescued from towns previously held by Boko Haram painted a picture of “absolute terror and grave human rights violations” by the insurgents in northeast Nigeria, and also yielded reports of violations of international human rights and international humanitarian law by Nigerian armed forces.

The High Commissioner urged the new administration of Nigerian President Muhammadu Buhari to take urgent measures to bring to justice perpetrators of human rights violations and abuses, whether non-State or State actors. He also called on the authorities to ensure that counter-insurgency operations do not result in furthering the human rights devastation in the northeast of the country…