Nigerian President Muhammadu Buhari on Wednesday inaugurated an updated security plan to tackle emerging threats in the most populous African nation.

The National Security Strategy, a document revised every five years, covers details on how to enhance the capacity of Nigeria's military and other security agencies.

Speaking at the inauguration of the document in Abuja, Buhari said the government remains committed to enhancing the social security of Nigerians as a means of improving physical security.

He said the numerous security challenges facing the country made it necessary to come up with a comprehensive and coordinated response involving all segments of the society.

"As we continue to work towards completely ending insurgency in the northeast and laying the foundation of sustainable peace and development in the region, we are also addressing conflicts between farmers and herders, banditry and various forms of security challenges." Buhari said.

He said security is about bottom-to-top operation, and failure at any level will lead to a serious lapse in overall security.

"The task that now lies before us is the execution of the strategy and the achievement of a safer and more secure nation," Buhari said. "It is a task to which this administration remains fully and unreservedly committed.”

Speaking earlier, Babagana Monguno, Nigeria's national security adviser, noted both internal and external security threats globally are attributable to organized crimes across borders.

"As we consolidate on the successes of peace-building in the northeast and the Niger Delta, the clear lesson for all of us here is that the key to sustainable peace and development is to guarantee security both in terms of economy and social status for everybody." he said.