US Secretary of State Mike Pompeo will meet negotiators from the Taliban and Afghan government amid signs of progress in their talks as the United States speeds up its withdrawal.
The State Department said late Friday that Mr Pompeo will meet separately with the Afghan government and Taliban negotiation teams in the Gulf state of Qatar.
Mr Pompeo will also see Qatar's ruler, Emir Sheikh Tamim bin Hamad Al Thani, and the foreign minister on his stop in the capital Doha, the Taliban's base for diplomacy, the State Department said on its public schedule.
The outgoing top US diplomat is on a seven-nation tour of Europe and the Middle East as President Donald Trump shores up late-term priorities.
Earlier this week, the Pentagon said it would soon pull some 2,000 troops out of Afghanistan, speeding up the timeline established in a February agreement between Washington and the Taliban that envisions a full US withdrawal in mid-2021.
Mr Trump has repeatedly vowed to end "forever wars," including in Afghanistan, America's longest-ever conflict that began with an invasion to dislodge the Taliban following the September 11, 2001 attacks.
President-elect Joe Biden, in a rare point of agreement, also advocates winding down the Afghanistan war although analysts believe he will not be as wedded to a quick timetable.
The Taliban for the first time are speaking to Afghanistan's government.
The talks started September 12 in Doha but almost immediately faltered over disagreements about the agenda, the basic framework of discussions and religious interpretations.
Several sources told AFP on Friday that the two sides appear to have resolved some of the issues, however.
Among the sticking points so far, the Taliban and the Afghan government have struggled to agree on common language on two main issues.
The Taliban, who are Sunni hardliners, are insisting on adherence to the Hanafi school of Sunni Islamic jurisprudence, but government negotiators say this could be used to discriminate against Hazaras, who are predominantly Shiite, and other minorities.
Another contentious topic is how the US-Taliban deal will shape a future Afghan peace deal and how it will be referred to.