TEHRAN (FNA)- Secretary of Iran's Supreme National Security Council (SNSC) Ali Shamkhani and National Security Advisor of Pakistan Nasser Khan Janjua in a meeting in Tehran on Monday discussed the latest security developments in the regional countries.

During the meeting, Shamkhani and Janjua also reviewed ways to expand and strengthen cooperation between the two countries over common security issues.

Janjua arrived in Tehran on Sunday afternoon to meet Shamkhani and other high-ranking Iranian officials on security subjects and other issues of mutual interest.

He traveled to Iran after Iranian Border Guards Commander Brigadier General Qassem Rezayee requested the government of neighboring Pakistan to take a tougher line on terrorist activities near Iran's border.

"Fortunately, despite insecurity in the neighboring countries, we enjoy secure borders and our border guards will not allow terrorists to cross the border and run operation," Rezayee said on Saturday.

He referred to the activity of 70 to 80 terrorist groups in Pakistan, and said, "We have seriously asked Pakistan to confront these groups and the Pakistani government should account for the blood of our martyrs (the Iranian nationals and border guards killed by the terrorist groups) and we promise to take revenge for (the blood of) our comrades," he added.

Four Iranian border guards were killed earlier this month in an ambush by terrorists in the border region of Jakigour in the Southern Sarbaz district of Sistan and Balouchestan province.

After the incident Iran's Deputy Police Chief General Saeed Montazer Al-Mahdi announced that the country's officials have called on Islamabad to arrest and extradite the terrorists who fled to Pakistan after killing four border guards in Southeastern Iran.

The terrorists have fled to Pakistan, said Montazer Al-Mahdi said.

According to him, the timely reaction by the Iranian border guards stopped the terrorists from sneaking into the country.

"But, unfortunately, four of our border guards were killed," he said.

Montazer Al-Mahdi said that following the incident, senior Iranian border guards commanders called on the Pakistani security and border officials to do whatever needed to arrest and extradite the terrorists to Iran.

By Fars News Agency