Edward Kallon, United Nations Humanitarian Coordinator in Nigeria, has paid a condolence visit to Zabarmari village in Borno.
More than 43 farmers of the community were gruesomely murdered by Boko Haram last Saturday at Koshebe.
In a statement on Wednesday, Kallon said there was no word to describe his feeling.
Kallon called the killings an act of sheer inhumanity and abject cruelty, and demanded that perpetrators of the heinous and senseless act be brought to justice.
The top UN official added that he met Governor Babagana Zulum, Governors of Adamawa, Bauchi, Gombe, Taraba States, and the Deputy Governor of Yobe State.
He disclosed that they all agreed that stabilizing and developing the north-east is not only important for the people living in these states but also crucial for the whole country and key to the sub-region.