Militant Fulani herdsmen are increasingly their reach within the west Africa country and have killed nearly 150 people in the month of February 2016 alone, according to International Christian Concern (ICC).
The organisation reports 145 people were slaughtered across 25 villages in the Agatu Local Government Area alone in Feburary and it is accusing President Muhammadu Buhari of "practically turned a blind eye" to the Fulani.
The ICC is branding the Fulani as "possibly the greatest threat to Christians and overall security in Nigeria", adding the militants are specifically targeting Christians.
It is also warning distrust among Christians in Nigeria of President Buhari has grown in light of the government's failure to reunite the remaining 218 missing Chibik school girls - many of whom are Christians.
On May 17, 2016, one of the 219 lost Chibok girls was found wandering on the edge of the Sambisa Forest with a baby and a man who claimed to be her husband.
In a statement the ICC says: "President Buhari has vowed to destroy the group's influence in Nigeria. President Buhari is working against Boko Haram, there is no question about that, but suspicions still exist amongst Christians."
Muhammadu Buhari last his first anniversary as President of Nigeria, last week.
It concludes by saying: "President Muhammadu Buhari has seen success and failure in his first year. He has pushed Boko Haram back to guerilla tactics, regaining much of the stolen territory from the militants, and he has at least semi-recognized the consistent sufferings of the Christian minority.
"In regards to Boko Haram, we can expect to see more and more success as the president and the Nigerian military continue to hunt them down.
"In regards to the Fulani militants, however, President Buhari cannot continue to ignore the real threat they present to the Christians in Nigeria."