Supreme Leaders' senior advisor Ali Akbar Velayati said Iran will not leave the Syrian, Iraqi, and Lebanese nations alone in their fight against the new wave of terrorism and extremism in the region.

“We helped Syria and Iraq battle terrorism and the ISIL and we supported Baghdad and Damascus to restore security,” Velayati told reporters after his meeting with former French Prime Minister and Foreign Minister Dominique de Villepin in Tehran on Tuesday.

He added that in his talks with Villepin, the two sides emphasized that those countries, which have not learned their lesson from supporting terrorism, should stop their support.

Velayati noted that due to Iran's deep-seated ties with Syria, Lebanon and Iraq, it “will definitely continue its aid (for those countries) in accordance with international regulations and their governments’ demand and regards this as part of its duties.”

He noted that Iran has been a pioneer in fighting against terrorism and noted that the country closely watches the ongoing developments in Syria, Lebanon and Iraq.

The crisis in Iraq escalated after the ISIL militants took control of Mosul in a lightning advance on June 10, which was followed by the fall of Tikrit, located 140 kilometers (87 miles) Northwest of the capital, Baghdad.

They have been carrying out horrific acts of violence, including public decapitations and crucifixions, against all Iraqi communities such as Shiites, Sunnis, Kurds, Christians, Ezadi Kurds, and others.

The West and its regional allies, including Qatar, Saudi Arabia, and Turkey, are giving financial and military support to the militants.