Nato-led troops have found human remains but no survivors on the mountain near Kabul where an Afghan airliner crashed last Thursday.
All 104 people on board the Kam Air Boeing 737 are feared dead. If the deaths are confirmed, it would be Afghanistan's worst air disaster.
Five Slovenian mountain troops were dropped on to the mountain 30km (20 miles) east of Kabul on Monday morning.
The troops were airlifted off once weather deteriorated again.
Nato spokeswoman Maj Karen Tissot Van Patot confirmed remains were found but said it was impossible to say how many bodies they belonged to.
Turned back
About 100 Afghan soldiers have also climbed to within 150 metres of the crash site and will camp overnight.
Defence ministry spokesman, Gen Mohammed Zaher Azimi, said: "As well as the cold and the snow, there could be mines up there. It will take weeks to complete our job."
Afghan troops were also manning a checkpoint on a road near the site to stop relatives and journalists reaching it.
Fifteen relatives of one passenger tried to get to the site in two jeeps but were turned back.
One of the relatives, Awaz, said he wanted to bring back the body of brother, Baz Mohammed.
"I will know his face... or I will find his ID card in his pocket," he told Associated Press.
Bad weather, not foul play, is thought to have caused the crash.
The wreckage had been spotted by helicopter crews of the Nato-led peacekeeping force, Isaf, on the 3,353m (11,000ft) high mountain on Saturday.
The tail can be seen on the summit, but the fuselage and wings have yet to be found and rescuers believe these may be on the other side of the mountain.
The plane lost radio contact with air traffic controllers on its approach to Kabul airport on Thursday as it flew into a heavy snowstorm.
It was on its way from the western Afghan city of Herat.
Most of the 104 people on board the plane were Afghans, but there were also about 20 foreigners.
They are thought to include nine Turks, six Americans and three Italians.
Of eight crew members, at least four were Russian and two were Afghans.
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