According to a report released by the human rights organisation on Thursday, the victims include an estimated 2,550 Christians and 1,050 Muslims who lost their lives in attacks carried out in different parts of the country.
The report, signed by Intersociety's Lead Researcher, Emeka Umeagbalasi, alongside other officials of the organisation, also claimed that 2,800 Christians and 1,150 Muslims were abducted during the same six-month period.
Intersociety further alleged that the attacks resulted in the destruction of 300 churches, the killing of 10 Christian pastors, the abduction of another 10 clerics, and the forced conversion of about 800 Christian women and children to Islam while in captivity.
The organisation accused the Federal Government of failing to effectively tackle the security crisis, arguing that the continued attacks reflect a lack of decisive action against perpetrators. It also called on the government to either strengthen domestic prosecution of offenders or invite the International Criminal Court (ICC) to intervene under international legal provisions.
Providing a breakdown of the incidents, Intersociety said Plateau State recorded about 420 Christian deaths, while Southern Borno accounted for approximately 400 deaths. Other states listed among the worst affected include Benue, Taraba, Kaduna, Niger, Kogi, Nasarawa, Adamawa, Bauchi, Oyo, Ondo, Delta, Edo, Imo, Enugu, Abia, Kwara, Kebbi, and Ekiti.
Among the victims highlighted in the report was Elder Musa Usman (Tall Mosee) of the ECWA Church, who was reportedly abducted by Boko Haram after being identified as the only Christian among passengers travelling through Borno State.
The report also cited the killing of COCIN Senior Pastor, Reverend Marcus Nyam, who was allegedly among 30 Christians killed during an attack on Kawel Village in Bokkos Local Government Area of Plateau State.
In addition to Christian casualties, the organisation claimed that at least 850 Muslims, mostly from non-Fulani communities, were also killed by jihadist groups in states including Zamfara, Sokoto, Katsina, Kebbi, Kaduna, Niger, and Kwara.
The report has renewed calls for stronger security measures and more coordinated efforts to address insecurity and protect lives across Nigeria.