Turkey announced the suspension of talks between Afghanistan's warring sides until after Ramadan and Eid Al Fitr – hours after a suicide bombing in Kabul injured four people.
The suicide bomber struck as an Afghan security convoy was travelling in the capital.
Afghanistan's interior ministry said civilians and security personnel were among the wounded.
No group claimed responsibility.
The attack was the first in weeks in the capital, even as targeted killings escalated and Afghanistan's security personnel came under relentless attacks by Taliban insurgents.
Residents fear the attack could be a harbinger of what is to come as the US and Nato prepare to begin their withdrawal from Afghanistan expected to be completed by September 11, the 20th anniversary of the deadly terrorist attacks in America.
The attacks carried out by Al Qaeda were plotted in Afghanistan while the country was ruled by the hardline religious militia.
It had been hoped Afghanistan’s rival sides would reach a peace pact at the talks in Turkey, to end decades of war.
US State Department spokesman Ned Price did not confirm the postponement but said broader diplomatic efforts will continue: "We've always been clear, Istanbul was not a replacement for Doha."
Taliban and Afghan government negotiators began peace talks last year in the Qatari capital of Doha, but progress was slow and violence continued to escalate in Afghanistan.
Washington was trying to speed up the process, which included pushing for the summit in Turkey that was to be attended by more than 20 countries and global bodies.
UN spokesman Stephane Dujarric said on Tuesday that he could not confirm if the conference had been postponed.
"The United Nations, along with the co-conveners, Qatar, Turkey, we're continuing to engage with representatives of both the Islamic Republic of Afghanistan and the Taliban on ways to strengthen and add impetus to the intra-Afghan negotiations," Mr Dujarric said.
The UN special envoy for Afghanistan, Deborah Lyons, was in Doha last week to discuss with Afghan parties "the best way the international community can support them in making progress on their negotiations towards a just and durable political settlement", Mr Dujarric said.
"Our focus will continue to be on progress in intra-Afghan negotiations, which is a critical part of the way forward."
A leading US general voiced "grave doubts" on Tuesday about the Taliban's reliability as a negotiating partner for Washington and Afghan diplomats in the event of the military's full withdrawal from America's longest war.
The Islamist Taliban ruled Afghanistan from 1996 to 2001, when they were ousted by US-led forces. Since then, they have waged a long-running insurgency and still control wide several areas of the country.
New process leads to panic among jobseekers
As a UAE-based travel agent who processes tourist visas from the Philippines, Jennifer Pacia Gado is fielding a lot of calls from concerned travellers just now. And they are all asking the same question.
“My clients are mostly Filipinos, and they [all want to know] about good conduct certificates,” says the 34-year-old Filipina, who has lived in the UAE for five years.
Ms Gado contacted the Philippines Embassy to get more information on the certificate so she can share it with her clients. She says many are worried about the process and associated costs – which could be as high as Dh500 to obtain and attest a good conduct certificate from the Philippines for jobseekers already living in the UAE.
“They are worried about this because when they arrive here without the NBI [National Bureau of Investigation] clearance, it is a hassle because it takes time,” she says.
“They need to go first to the embassy to apply for the application of the NBI clearance. After that they have go to the police station [in the UAE] for the fingerprints. And then they will apply for the special power of attorney so that someone can finish the process in the Philippines. So it is a long process and more expensive if you are doing it from here.”
The specs: 2019 Haval H6
Price, base: Dh69,900
Engine: 2.0-litre turbocharged four-cylinder
Transmission: Seven-speed automatic
Power: 197hp @ 5,500rpm
Torque: 315Nm @ 2,000rpm
Fuel economy, combined: 7.0L / 100km
Shubh Mangal Saavdhan
Directed by: RS Prasanna
Starring: Ayushmann Khurrana, Bhumi Pednekar
The President's Cake
Director: Hasan Hadi
Starring: Baneen Ahmad Nayyef, Waheed Thabet Khreibat, Sajad Mohamad Qasem
Rating: 4/5
BUNDESLIGA FIXTURES
Friday (UAE kick-off times)
Cologne v Hoffenheim (11.30pm)
Saturday
Hertha Berlin v RB Leipzig (6.30pm)
Schalke v Fortuna Dusseldof (6.30pm)
Mainz v Union Berlin (6.30pm)
Paderborn v Augsburg (6.30pm)
Bayern Munich v Borussia Dortmund (9.30pm)
Sunday
Borussia Monchengladbach v Werder Bremen (4.30pm)
Wolfsburg v Bayer Leverkusen (6.30pm)
SC Freiburg v Eintracht Frankfurt (9on)
Results
2.30pm: Handicap (PA) Dh40,000 1,700m; Winner: AF Mezmar, Adam McLean (jockey), Ernst Oertel (trainer).
3pm: Maiden (PA) Dh40,000 2,000m; Winner: AF Ajwad, Tadhg O’Shea, Ernst Oertel.
3.30pm: Handicap (PA) Dh40,000 1,200m; Winner: Gold Silver, Sam Hitchcott, Ibrahim Aseel.
4pm: Maiden (PA) Dh40,000 1,000m; Winner: Atrash, Richard Mullen, Ana Mendez.
4.30pm: Gulf Cup Prestige (PA) Dh150,000 1,700m; Winner: AF Momtaz, Saif Al Balushi, Musabah Al Muhairi.
5pm: Handicap (TB) Dh40,000 1,200m; Winner: Al Mushtashar, Richard Mullen, Satish Seemar.
GAC GS8 Specs
Engine: 2.0-litre 4cyl turbo
Power: 248hp at 5,200rpm
Torque: 400Nm at 1,750-4,000rpm
Transmission: 8-speed auto
Fuel consumption: 9.1L/100km
On sale: Now
Price: From Dh149,900
