Iranian authorities have freed Iranian-Canadian professor Homa Hoodfar from prison.
Homa Hoodfar, a retired professor at Concordia University in Montreal, was flown out of the country.
A spokesman for Iran's Foreign Ministry was quoted as saying that Hoodfar was released on humanitarian grounds.
"Homa Hoodfar, the retired professor of Canadian universities, who had been detained in Iran based on some accusations, was released this afternoon for humanitarian reasons including illness, and left Iran to Canada, through Oman," Bahram Qasemi was quoted as saying by the Fars news agency.
Hoodfar had been banned from leaving the country in March after traveling to the Islamic republic to visit family following the death of her husband.
Her family said she had been imprisoned in Tehran's Evin Prison since June.
In the past few months, several dual nationals from the United States, Britain, and France have been jailed in Iran or have faced pressure from authorities.