The statement quoted Mr. Kallon as expressing grave concern over the unauthorized search on the facility used as a base for United Nations humanitarian workers.
Nigeria's security forces have raided a United Nations camp in the north-eastern city of Maiduguri and carried out an unauthorised search, a United Nations official has told the BBC.
While the United Nations now does not have any information related to the unauthorized search, the statement added, Mr. Kallon will seek an explanation for its motivation.
"The United Nations Humanitarian Coordinator and the Designated Official for security in Nigeria, Edward Kallon, is liaising with the Government of Nigeria".
He said: "The humanitarian crisis in Nigeria's North-East is one of the most severe in the world today".
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Samantha Newport, Head of Communications, UN Office for the Coordination of Humanitarian Affairs, Nigeria, in a statement, quoted Kallon as saying this on Friday in Abuja. It has forced the Boko Haram Terrorists (BHTs) to change tactics and resort to employment of suicide bombers to target military locations and the populace.
On its part, the military said the operation was "a week long search operations for fleeing Boko Haram terrorists conducted on 30 houses in different areas, one of which included a property occupied by the United Nations around Pompamari". The operation was successfully conducted as over 30 houses were searched. This necessitated the need to intensify cordon and search in the Maiduguri metropolis and environment.
Samuel explained that "on 10th August 2017, Theatre Command received information from one of its credible sources that some high value BHT suspects had infiltrated into Pompomari Bye Pass".
Rumours have been swirling in Maiduguri that the leader of Boko Haram, Abubakar Shekau, has been hiding out in a compound with the same name.
We can't wait to see how this saga would play out.