Yemen's warring sides quietly began UN-backed talks about a prisoner swap on Monday, according to the United Nations.
UN deputy spokesman Farhan Haq said a third round of negotiations aimed at implementing an ambitious Yemeni prisoner exchange was underway in the Jordanian capital of Amman.
Although heavy clashes continue on the ground, the resumption of talks signals modest headway in diplomatic efforts to resolve a war that has killed over 100,000 people and pushed millions to the brink of famine.
The prisoner swap deal was seen as a breakthrough during the 2018 peace talks in Sweden, where Yemen's Shiite Houthi rebels and the internationally recognized government agreed to several such confidence-building measures, including a cease-fire in the strategic port city of Hodeida.