TEHRAN, Iran — Iran said Saturday it has uncovered spy rings organized by the United States and its Western allies, claiming on state-run television that the espionage networks were made up of “infiltrating elements from the Iraqi occupiers.”

The Intelligence Ministry has “succeeded in identifying and striking blows at several spy networks comprised of infiltrating elements from the Iraqi occupiers in western, southwestern and central Iran,” said the statement, using shorthand for United States and its allies.

The broadcast did not elaborate, saying further details would be published within days.

Meanwhile, the state IRNA news agency said the uncovered networks “enjoyed guidance from intelligence services of the occupying powers in Iraq” and also that “Iraqi groups” were “involved in the case.”

The White House said Saturday that it does not confirm or deny allegations about intelligence matters.

“We urge Iran to play a positive role in Iraq ... and stop blaming everyone else for problems they are only bringing on themselves,” White House deputy press secretary Dana Perino said.

Since the U.S.-led invasion of Iraq, Iran has often accused the United States and Britain of trying to undermine the security of the Islamic Republic.

The allegations Saturday come two days before American and Iranian ambassadors are to meet in Baghdad to discuss ways to ease the crisis in Iraq. It remains unclear how the announcement will affect those talks, although it clearly reflects a toughening of Iran’s stand.

The talks Monday in Baghdad will offer a rare one-on-one forum between the two countries, which broke off formal relations after Iran’s 1979 Islamic Revolution. The agenda is expected to be limited to Iraqi affairs, without touching on the nuclear impasse between Iran and the West.

The talks will also take place against the backdrop of five Iranians held by U.S. troops for more than three months after their January capture in the northern Iraqi city of Irbil.