The Taliban have freed an American and an Australian held hostage since 2016 in exchange for three imprisoned senior militants.
Timothy Weeks and Kevin King were kidnapped outside the American University of Afghanistan in Kabul where they worked as professors.
The three Taliban prisoners reportedly include Anas Haqqani, younger brother of the Taliban deputy, Sirajuddin Haqqani, and two other senior commanders.
Afghanistan's President Ashraf Ghani said it was a hard decision but is aimed at restarting talks with the Taliban.


Trump says deal to end war to be signed Sunday, Iran questions timing
India Air Force plane crash kills all five onboard
Ukrainian strike kills one, wounds 3 in southern Russia
Trump says US military strike killed leader of Venezuela's Tren de Aragua gang
Qatar rejects media report on energy production decisions
Trump says Iran war deal close as Strait of Hormuz tensions linger
Victims' families mark Air India crash anniversary with prayers and tributes
Ebola outbreak spreads to crowded displacement camp in Congo
