Hossein Amir Abdollahian said US has supported Daesh seriously to achieve its goals.
Iran and the Lebanese Hezbollah were present in the region to fight terrorism, he said adding that Russian also helped in the fighting process.
Amir-Abdollahian accused the Americans of aiding the ISIL terrorist group, adding they were the main backer of the terrorism in line with their interests.
The Iranian official also touched upon the US 2018 strategy outlined by Donald Trump, saying Trump lied about the strategy when he declared that the US put an end to ISIL terrorism in Iraq and Syria in direct contradiction to the facts on the ground.
He further noted that the Islamic Republic of Iran stood alongside the Iraqi and Syrian armies in the fight against terrorism and the world needs to be grateful for that help.
Two terrorist groups attacked mausoleum of the late Imam Khomeini and the Iranian Parliament (Majlis) on June 7, 2017, killing 17 people and injuring 52 more.
One of the attackers blew up himself outside the Imam Khomeini mausoleum.The terrorist group of Daesh (ISIS) claimed responsibility for the fatal attacks in Tehran.