Iranian authorities executed two men on Sunday convicted of working for Israeli and US spy agencies, Iran's Fars news agency reported.

Mohammad Heidari, accused of passing security-related information and secrets to Israeli Mossad agents in exchange for money, and Kourosh Ahmadi, accused of gathering information for the US Central Intelligence Agency, were hanged at dawn, it said.

The sentence for their execution was handed down by Tehran's Revolutionary Court and confirmed by the country's Supreme Court. The report did not say when the pair were arrested nor when their trial took place.

Iran has blamed the US and Israel for infiltrating the Islamic Republic, and targeting its nuclear scientists.

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In 2011, Iranian intelligence services announced they arrested a network of Mossad spies linked to the assassination of the country's top nuclear scientists in 2010, and that the spies had revealed information on additional anti-Iran Israeli plots.

In 2012, Iran gave a death sentence to Amir Mirza Hekmati "for cooperating with the hostile government of America and spying for the CIA."

Both the US and Israel have denied the espionage charges.

Yaakov Katz contributed to this report.

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