CNN said Tuesday the report came from a "semi-official" news agency in Iran that has ties to the Revolutionary Guards.

The report offered sparse details and did not say which foreign nation the suspects were working for; however, Israel and the United States have been at odds with Tehran over Iran's nuclear program.

CNN said the reported arrests come two weeks after Iran's Fars news agency said three alleged agents of Israel's Mossad had been arrested. The report said the suspects spied on Iranian military and nuclear facilities and had been trained in Israel to carry out terrorist bombings and assassinations.