Two female South Korean hostages, captured by the Taliban along with 21 others in Afghanistan more than three weeks ago, have been released, an Afghan official told CNN.
The two, identified as Kim Kyung Ja and Kim Jina, are believed to be now in Ghazni's provincial capital, also called Ghazni.
The group of volunteer Christian workers were seized as they traveled by bus from Kabul to Kandahar on July 19.
Nineteen of the hostages -- 18 of them female -- are still being held. The Taliban has killed two male hostages.