Shamkhani, who arrived in the Iraqi capital on Sunday morning, made the remarks in a meeting held in Baghdad with Iraqi National Security Advisor Qassim al-Araji.
At the meeting, Shamkhani who is also representative of the Supreme Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei referred to efforts jointly made by Tehran and Baghdad to conclude a comprehensive security agreement that would guarantee stability in the joint border crossings and improve the security conditions there.
The exact implementation of such an agreement will lead to a significant decrease in terrorist threats and prepare the ground for fostering bilateral ties in security, economic and political fields, the official underlined.
Iran believes that the US measures and policies have been creating a crisis, and the United States is the source of insecurity in the region and in Iraq as well, the top security official announced.
Those measures have continued and cannot be tolerated, Shamkhani stressed.
He further described the Jan 2020 assassination of General Qassem Soleimani (the former commander of the Islamic Revolution Guards Corps (IRGC) Quds Force) and Iraqi popular militia commander Abu Mahdi al-Mohandes as clear examples of the US crisis-creating acts.
At the end of his remarks, Shamkhani appreciated the effective role Iraq played in the Iran-Saudi Arabia agreement.
Qassim al-Araji, for his part, thanked Shamkhani for his visit to Iraq and said that the agreement between the two countries to eliminate the security challenges imposed on Iran-Iraq ties would serve the interests of the two friendly states.
He noted that Baghdad will do its best to fully implement the agreement and will not allow any group or country to use Iraq's territory to create insecurity in Iran.
Congratulating Shamkhani for Iran and Saudi Arabia's agreement to resume mutual ties, he underlined that the Iraqi government is fully prepared to help realize the agreements reached between Tehran and Riyadh as soon as possible, which will benefit the two countries and increase stability and security in the region.