Iran recently arrested members of a so-called "sophisticated terror and sabotage network" operated by Israel, the Iranian government news agency IRNA reported on Tuesday.
"Terrorists supported by the Zionists" were arrested after a months-long investigation in the center of the country and along borders, according to the report.
The news agency did not specify which borders, but in the wake of recent tensions between Iran and Azerbaijan - on the heels of the increasingly warm relations between Baku and Jerusalem - it was believed that the Iranians carried out the arrests near the border with Azerbaijan.
The report, based on information from the Iranian Intelligence Ministry, said security forces were able to expose the "Zionist regional command center" in the country, which was in charge of planning terrorist attacks inside Iran.
In a statement issued Tuesday afternoon and quoted by the semi-official FARS news agency, the Iranian Intelligence Ministry said its forces "have discovered one of the biggest terror and sabotage networks of the Quds Occupying Regime (Israel) and protected cells of its operatives and arrested groups of criminal terrorists and mercenaries cooperating with them."
The ministry did not detail exactly when and where the suspected terror squad was captured, nor did it reveal the number of detainees, but claimed that some of the suspects were arrested after an exchange of fire, and that "bombs, machine guns, pistols, silencers, communications and military equipment, and other terrorist means" were found.
As with previous Iranian reports on the capture of Israeli or Western cells, Tuesday's report could not be confirmed, and Israel refused to comment.
Iran has blamed Israel, the U.K. and the U.S. for the killing, in recent years, of at least four Iranian nuclear scientists, saying these countries initiated and organized the assassinations through "terrorist elements." In recent years, there have also been mysterious explosions at strategic sites in Iran.