At least 65 Daesh terrorists, including several high-ranking intelligence commanders, were killed in Iran's recent missile attack against the Takfiri group’s targets in eastern Syria, according to a statement by Iran’s Islamic Revolution Guards Corps (IRGC).

Four Daesh positions were struck in the missile attack, according to the statement sent to PressTV on Tuesday.

The IRGC fired six medium-range ground-to-ground ballistic missiles into Daesh bases in Syria’s Dayr al-Zawr on Sunday in retaliation for twin terrorist attacks in the Iranian capital Tehran, which killed 17 people and injured over 50 others.

A Daesh weapons and munitions cache in northern Dayr al-Zawr was "precisely struck and completely annihilated," the statement said, adding that several tanks, military vehicles and suicide cars and a huge number of long-range missiles were destroyed. It added that six Daesh Takfiris were killed and 10 injured in the attack.

Meanwhile, a Daesh command and operation center in the eastern Syrian city of al-Muhassan was also targeted, which the IRGC described as "one of the key and crucial Daesh centers in the region." In the missile strike, more than 15 Kazakh, Saudi and Afghan terrorists were killed, including senior Saudi Daesh commander, Sa’ad al-Qosaibi, the statement said.

In a strike on a Daesh gathering center in the city of al-Mayadin, east of Dayr al-Zawr, 27 terrorists were killed, including three Libyans, and a number of others injured.

Some 17 terrorists were killed and a number of others severely injured in an attack on a military hospital in al-Mayadin. The casualties included Tunisians, Iraqi and Chinese nationals.

Earlier reports said on Tuesday that six Libyan Daesh commanders were killed in the IRGC attack on al-Mayadin; two of whom have been identified as Abu Asim al-Libyai and Abdel Kader al-frani, better known as Abu Harith.

On June 7, gunmen mounted almost simultaneous assaults on Iran’s Parliament and the Mausoleum of the late Founder of the Islamic Republic Imam Khomeini. The Daesh Takfiri terrorist group claimed responsibility for the assaults.

Iranian Defense Minister Brigadier General Hossein Dehqan said on Tuesday the IRGC’s missile strike on Daesh was just a small part of the Islamic Republic’s reaction to the “indiscriminate” attacks by the terror group on the Iranian soil.

“Iran’s defense doctrine is based on the principle of active and effective deterrence and responds to any possible regional and trans-regional threats in the strongest way,” Dehqan said.

Chief of Staff of the Iranian Armed Forces Major General Mohammad Baqeri on Monday hailed the Islamic Republic’s great missile capabilities, saying Iran is currently among the major missile powers in the world.

“In many areas, including underground, marine, air, space and intelligence and…technologies, we are competing with the arrogant system,” Baqeri said.

Iranian Foreign Minister Mohammad Javad Zarif also on Monday defended the country’s right to develop it missile program, saying it is aimed at uprooting terrorism and extremism.

Zarif said, “Iran’s missile capability protects its citizens in lawful self-defense.”