© AP Photo/ Emrah GureIslamic State group pins are on display at an Islamic bookstore where books about Islam, militant Islamic leaders and Islamic flags are displayed in the Fatih district of Istanbul, Monday,Oct. 13, 2014
"Following a series of sophisticated intelligence operations and with the cooperation of the families of some of the terrorists, 41 elements of the ISIL [Daesh] Takfiri group were identified and arrested before conducting any act of terror," the statement said, as quoted by the Fars news agency.
The operations were conducted in the provinces of Kermanshah, Kordestan, West Azerbaijan and Tehran.
"Many documents and equipment for terrorist operations were also seized from the terrorists," the Intelligence Ministry added.
The Iranian police also announced on Friday that they managed to seize 92 Colt handguns in the western province of Kermanshah.
The security measures are tightened in Iran following a double terrorist attack in the county's capital of Tehran that left at least 12 people dead and more than 40 injured. Daesh reportedly claimed responsibility for the attack.
Comment: See also: Dozens of fatalities & injuries after shootings, bombings at Iranian parliament & Khomeini shrine - UPDATES