|Parvaz has been missing since being detained by Syrian authorities on arrival in Damascus on April 29.
Al Jazeera has called for the immediate release of missing journalist Dorothy Parvaz after Iran's foreign minister Ali Akbar Salehi said he had no information about her whereabouts.
Parvaz, who holds Iranian, American and Canadian citizenship, has been missing since she arrived at Damascus airport on April 29 to cover protests in Syria.
Syrian authorities claimed earlier this week that Parvaz had been deported to Iran on may 2, escorted aboard a Caspian Airlines flight to Tehran by the Iranian consul.
Asked on Saturday whether Syria had handed over the journalist, Salehi said: "I have no information."
Salehi, speaking to Al Jazeera, had previously urged Syria to investigate Parvaz's case.
In a statement issued on Saturday, Al Jazeera said: "Al Jazeera is continuing to call for information about Dorothy Parvaz's whereabouts, access to Dorothy, and for her immediate release.
"Though Ali Akbar Salehi, Iran’s Foreign Minister, has said he has no information about her whereabouts, Al Jazeera has requested information from a number of ministries in Tehran in order to secure Dorothy's release."
Parvaz is an experienced journalist who joined Al Jazeera in 2010.
She graduated from the University of British Columbia, obtained a master's degree from the University of Arizona, and held journalism fellowships at both Harvard and Cambridge.
She previously worked as a columnist and feature writer for the Seattle Post-Intelligencer.
Parvaz's family has also called for the journalist to be released.
"Dorothy is a dearly loved daughter, sister and fiancée, and a committed journalist," they said in an earlier statement.