Iran's Revolutionary Guard launched missiles into eastern Syria targeting Islamic State militants Sunday in response to an attack on Iran's parliament and a shrine in Tehran, warning that it would similarly retaliate on anyone else carrying out attacks in Iran.
Iran fired six missiles from the western part of the country into eastern Syria targeting what it called "terrorist bases" in Deir ez-Zor.
Earlier, Iran had implicitly suggested that the USA and Saudi Arabia, its chief regional foe, had insinuated the terrorist attacks in Tehran.
Syrian Information Minister Mohammad Ramez Tourjman said Iran's missile strikes against ISIS positions in the Syrian city of Deir ez-Zor have sent a strong message to the government of Donald Trump to drop any potential plan for launching an attack on Iran or mounting a campaign to isolate the Islamic Republic on the worldwide arena.
Iran's homemade missiles, including some that are capable of hitting Israel or American military bases in the region, are a major point of tension with Washington and Israel.
Iran has described the Tehran attackers as being "long affiliated with the Wahhabi", an ultraconservative form of Sunni Islam practiced in Saudi Arabia.
Noting that Iran's policies in relation to the region and global affairs have not changed, Iran's president stressed that if any group tries to attack the country and harm the Islamic Republic they will receive a "decisive answer".
Tehran has devoted vast military and financial resources to propping up the regime of Syrian President Bashar al-Assad in a six-year civil war.
Iranian television showed footage of the missiles being launched into the night sky.
In Canberra, a Defense Department statement said on Tuesday that "Australian Defense Force protection is regularly reviewed in response to a range of potential threats".
Iraqi lawmaker Abdul-Bari Zebari said his country agreed to the missile overflight after coordination with Iran, Russia and Syria.
"The Islamic Republic of Iran's power to decide and respond is a rapid and decisive power and the missile strikes against the ISIL terrorists' positions in the past few days displayed Iran' might and power to make decisions and react", Safavi said. The officials spoke on condition of anonymity because they were not authorized to speak to reporters.