Another meeting of the National Security Committee under the chair of Prime Minister Shehbaz Sharif began at PM House in Islamabad on Monday afternoon.
The meeting is being attended by the army chief, chairman joint chiefs of staff committee and ISI director general.
Ministers of interior, defence and information are also present in the meeting.
The meeting is reviewing the recommendations made during the previous NSC meeting.
The meeting is expected to take up a raft of issues including launching of a new anti-terrorism operation on the agenda.
Sources said a string of important decisions are likely to be made as the civil and military geared up for the top security huddle.
Besides briefing from security officials and presentation of reports from different ministries, the meeting will sanction a set of guidelines regarding national security and economy.
The meeting may also clear the way for launching a new operation against the terrorists in the country.
The affairs concerning the borders between Pakistan and Afghanistan will also feature in the meeting.
During the last NSC moot held on Friday, the participants had resolved to accelerate operations against terrorists in the wake of rising attacks across the country.
In a statement issued after the security huddle , the PM's Office had said the NSC participants expressed an unequivocal opinion that Pakistan's national interests will not be compromised and no one will be allowed to harm national security.
The meetings come after the banned Tehreek-e-Taliban (TTP) had announced an end to the ceasefire with Islamabad and increased attacks on security forces, especially in Khyber Pakhtunkhwa and Balochistan.