This undated photo made available by Amanda Ghahremani, shows retired Iranian-Canadian professor Homa Hoodfar. A Tehran prosecutor said Monday, July 11, 2016, that Hoodfar, who is a retired professor at Montreal's Concordia University, is among four
This undated photo made available by Amanda Ghahremani, shows retired Iranian-Canadian professor Homa Hoodfar. A Tehran prosecutor said Monday, July 11, 2016, that Hoodfar, who is a retired professor at Montreal's Concordia University, is among four

Iran says it has released a retired Canadian-Iranian professor, who had been detained on "security charges."

A foreign ministry spokesman, quoted by the official IRNA news agency, said Homa Hoodfar was released on humanitarian grounds.

Hoodfar, 65, who most recently taught at Concordia University in Montreal, was arrested June 6 after a visit to Evin prison in Tehran.

Her passport had been confiscated and she was banned from leaving Iran, according to her family.

Iran does not recognize dual citizenship and has arrested multiple dual nationals over security-related issues.

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