The Iranian Intelligence Ministry said in a Wednesday statement that in one operation, security forces discovered no less than 23 remote controlled bombs that terrorists were going to use in order to wreak havoc in the eastern parts of the country.
Terrorists had managed to carry the bombs over Iran's eastern borders and sneak them into the country using help from Saudi intelligence agencies, according to the statement.
The ministry said another shipment of explosives complete with bomb-making equipment were seized from a terrorist group in the western province of Kordestan.
The materials, captured from a "separatist" militant group in the border town of Mariwan, included military-grade material such as TNT, C4, explosive kits and electronic charges.
The statement did not reveal further details about the identities of the terrorists or their possible targets.
Saudi officials have on several occasions made open calls for instability in Iran.