(IRIN) – Rights groups in Nigeria are calling for an independent investigation into evidence of abuses as video footage obtained by human rights group Amnesty International appears to show members of the Nigerian military brutally beating and murdering suspected militants in the country’s north. Northern Nigerians are being squeezed on all sides: under attack by the Islamist militant group Boko Haram, which has killed thousands of civilians and displaced 250,000, abducted children, and burnt down hundreds of villages, among other abuses; and also targeted by the soldiers ostensibly sent to protect them.