"The firing of these missiles had previously been coordinated with Syria an the missiles entered Syrian airspace through Iraq", Gen. Ramezan Sharif, head of Islamic Revolutionary Guards Corps (IRGC) public relations told Tasnim News, an Iranian government-linked news outlet, Monday.
The tensions and the complexity of the Syrian civil war have been escalated by the shooting down of a Syrian warplane by a U.S. fighter jet on Sunday and the same-day missile attack by Iran's Revolutionary Guards Corps from inside Iran at Islamic State in Iraq and Syria (ISIS) targets in Syria.
The parallel offensives points to an escalation between forces which back Syrian President Bashar al-Assad, such as Iran, and the USA which supports rebel groups.
Hours before the missile strike, Iran Army's Rapid Reaction Force were deployed to the western border areas of the country. Mohammadi also wrote that the strikes show that ties between IS fighters in Syria and Iraq can now be targeted.
The launch of an Iranian Emad intermediate-range ballistic missile.
Yesterday's strike came after twin attacks in Tehran on June 7 killed 17 people, in the first attacks in Iran claimed by IS.
Australia is part of a US -led coalition that has been waging war against Islamic State militants in Syria and Iraq.
Analyst Foad Izadi said the strike was meant to convey several messages. "Obviously and clearly, some reactionary countries of the region, especially Saudi Arabia, had announced that they are trying to bring insecurity into Iran".
The Guard, which is also involved in the fight against the Islamic State group in neighboring Iraq, controls Iran's missile program.
Nobakht further underlined that Iran's military clout is non-negotiable and that the country's nuclear deal of 2015 does not restrict its missile program.
"The Guards" missile strike sends multiple messages, said Amir Handjani, a non-resident fellow at the Atlantic Council.
The Guard, which answers only to Supreme Leader Ayatollah Ali Khamenei, called the launch "Operation Laylat al-Qadar", referring to the night Muslims believe the Quran was first revealed to the Prophet Muhammad. Khamenei called the new U.S. administration "inexperienced" and said that many officials before them took their dreams of overthrowing the Islamic Republic "to the grave", adding, "It will always be so".