Al-Jazeera journalist Dorothy Parvaz who went missing on her arrival in Syria last month is free and back in Doha, the news channel said on its website on Wednesday.
"Al-Jazeera network confirmed... that she has been released, and is safe and in good health," said a statement on the website.
The Arabic channel of Al-Jazeera said Parvaz returned to Doha from Iran.
Parvaz, who holds American, Canadian and Iranian passports, had disappeared on arrival in Damascus on April 29.
Syrian authorities said she was expelled to Iran for travelling on an expired Iranian passport.