The Afghan Taliban said on Wednesday they are holding talks on exchange of prisoners.
Taliban released videos of hostages, American Kevin King, 60, and Australian Timothy Weeks, 48, as proof they are alive.
They worked with the American University of Afghanistan in Kabul.
They were kidnapped near the campus in August 2016.
The hostages said in a video released in June 2017 that Taliban demand release of their soldiers being held by U.S. forces.
A Taliban official confirmed on Wednesday that negotiations are being held in Qatar for the exchanging prisoners.
He said, Pakistan is mediating for the release of the Taliban prisoners and U.S and Australian hostages.
Taliban have been demanding the release of Anas Haqqani, the brother of Taliban’s deputy Chief, Siraj Haqqani, Taliban leader, Hafiz Rashid.
The American security officials captured Anas at Bahrain airport after he visited Qatar in October 2014.