The Service Chiefs, led by the Chief of Defence Staff, General Gabriel Olonisakin arrived at the seat of power at in the morning and proceeded straight to the Council Chambers.
The Nation reported that President Buhari joined the meeting and immediately went into a closed session.
The Service Chiefs are expected to brief State House Correspondents at the end of the meeting.
Nigeria, in the last few months, has witnessed a rise in criminal activities of bandits, especially in the Northwestern part of the country.
The security meeting is expected to discuss the new increase in security challenges.
It should also be noted that the situation had led to protests in some of the states and among northern elite, which had led to calls on the President to give answers to the challenges.