A Russian torchbearer's clothing caught fire as he carried it through a Siberian city in the latest mishap to befall the Olympic flame.
A clip posted on YouTube by the Russian site Lifenews shows former Olympic bobsledder Pyotr Makarchuk parading the torch through a crowd in the city of Abakan when flames suddenly leap from the left shoulder and upper arm of his jacket.
Escorts immediately put out the flames and Makarchuk was not injured, said Roman Osin, spokesman for the Russian Sochi 2014 torch relay.
He said the flames were caused by drops of liquid gas that fell on Makarchuk's jacket in the incident yesterday.
The Olympic flame has been to the North Pole and the International Space Station on its 40,000-mile journey to Sochi.
However, it has gone out dozens of times, including minutes after President Vladimir Putin handed it over in Red Square last month.
A Russian space capsule carrying the Sochi Olympic torch and three astronauts has returned to Earth from the International Space Station this morning, landing in Kazakhstan.
Mission commander Yurchikhin was extracted from the capsule within about 10 minutes of touchdown and carried to a reclining chair, where he was put under a blanket against the cold and began adjusting to the pull of gravity after 166 days of weightlessness.
The torch, in a protective bag, was brought out and given to Yurchikhin to hold after it was unwrapped. He waved it a little and smiled.
Russia's plans for the first ever Olympic flame space walk have raised some safety concerns, NBC reports.
The "torch handover" space walk spectacle is planned for this Saturday, has added to the workload and scheduling requirements of the space station managers on the International Space Station as the station will have three crewed Soyuz ferry ships docked at the station at the same time.
According to NBC, this has only ever happened once before, four years ago, and after that experience a decision to never do it again was taken by authorities.
The Sochi Olympic torch has successfully blasted off into space on board a Soyuz rocket, ready to take its first space walk on the International Space Station.
For safety reasons the torch will not be lit during the launch, but once on board the space station Russian cosmonauts Oleg Kotov and Sergei Ryazansky are planning to take it outside the airlock, in what they described as a "spectacular" showcase for the Winter Games.
The Olympic torch has gone into space twice before, in 1996 and 2000, but it has never been taken on a space walk.
Russian Deputy Prime Minister Dmitry Kozak, who carried the Olympic flame in a lantern as part of a ceremony ahead of the Sochi 2014 Winter Olympics, said Russia's Olympics planning had unified the country.
"Today is a symbolic day for all of us which quite possibly may turn out to become a historic date. After 30 years, Russia is again meeting the Olympic flame which was lit in the homeland of the Olympic Games, in the ancient Olympia", said Kozak.
Russian President Vladimir Putin welcomed the Olympic flame to the country today in a spectacular ceremony in the capital's Red Square.
Putin championed the work of Olympic planners, volunteers and supporters and said: "It is quite logical that Russians love sports so much and appreciate everything that is connected with it.
"Without such active and engaged support by the public, citizens of Russia, it would have been impossible to implement gigantic sports projects. The Sochi Olympics has really become our common dream which is becoming a reality".