A torchbearer died of a heart attack after carrying the Olympic flame as part of relay leading up to Sochi 2014 http://reut.rs/1dgWNAR
Russia's four-month, 40,000 mile torch relay has been clouded by mishaps.
The flame has gone out dozens of times since President Vladimir Putin handed it off in Red Square on October 6, and last month a torchbearer's jacket caught fire as he carried the flame though another Siberian city.
Cosmonauts took an unlit torch on a spacewalk last month. The Olympic flame has been to the north pole and Lake Baikal on a journey that will end at the opening ceremony in Sochi on February 7.
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