Journalist Dorothy Parvaz has been released by the Iranian authorities and is back in Doha, on early Wednesday, reports said.

The Iranian-born Parvaz, who also has Canadian and American citizenship, works for the Doha-based news agency Al Jazeera.

Al Jazeera has confirmed the release of Parvaz release who was detained in Syria upon her arrival in Damascus nineteen days ago, while she was on assignment.

Parvaz's fiance, Todd Barker, said she called him early Wednesday from Qatar as she was clearing customs.

I looked at my phone, saw it was her number and God, it was as unreal as the moment when I got the call that she hadn't been contacted in 24 hours, Barker told The Canadian Press.

Parvaz, 39, went missing after leaving Qatar to cover the anti-government uprising in Syria for Al Jazeera's English-language news network.

Syrian authorities said she was sent to Iran shortly after her arrival, but the Iranian authorities did not confirm or deny the report, though she was in Iran.

Parvaz had told her fiance that she was treated very well, she was interrogated, but she's fine.

Barker said that she would be returning to Canada, without giving further details.

Al Jazeera said she landed in the Qatari capital on Wednesday on a flight from Iran. It said she wasn't allowed any contact with the outside world while she was detained.

She has been in contact with her family, and we are with her now to find out more about her ordeal over the last 18 days, an Al Jazeera spokesperson said.

Iran's foreign ministry spokesperson, Ramin Mehmanparast, told reporters on Tuesday that Ms. Parvaz had committed violations by trying to enter Syria with an expired Iranian passport and planned to work without a press permit and had several passports on her. He offered no details on what had happened to her in Iran.

In Syria, the government of President Bashar Assad has banned many foreign journalists and placed strict controls on the few media outlets still working in the country.

Parvaz joined Al Jazeera in 2010 and prior to that she was working for the Seattle Post-Intelligencer and has journalism fellowships at Harvard and Cambridge.