Nigeria does not need the help of UN or African Union troops to take on Boko Haram, national security adviser, Col. Sambo Dasuki (rtd) has told the BBC.
He said Nigeria, and its neighbours were in a “good shape” to take on the insurgents.
He, however, acknowledged the group, which is fighting to create an Islamic state, were a “real security threat”.
Mr Dasuki told the BBC’s Newsday programme that close to 50% of Nigeria’s army was now deployed to the north-east, which he said showed how seriously the situation was being taken.
However, several soldiers have complained about not being given enough weapons and working equipment to tackle Boko Haram.
Mr Dasuki has dismissed such criticisms, saying there were “cowards” within the armed forces who hampered the campaign against the insurgents.
When asked if Nigeria needed outside help, he said “No”, before saying it was an option to involve UN and AU forces, but regional partners were best placed to deal with the problem,
Nigerian soldiers currently make up the bulk of UN peacekeepers deployed to Africa, the security chief has said.
Correspondents say so far the regional fight against Boko Haram has been ineffectual.
Efforts to form a multinational force involving Nigeria, Niger, Chad and Cameroon have floundered.
However, following a meeting this week it was agreed that they would seek UN backing for the force – and move the headquarters from the captured town of Baga to Chad’s capital, N’Djamena.
Over the weekend, Chadian soldiers deployed to Cameroon’s border with Nigeria to help secure the country’s border.