Residents complain of 'severe carbon monoxide poisoning' as satellite images show blanket of smoke across eastern Siberia.
Pristine forests around the world's oldest lake go up in flames.
But is climate change to blame, or local officials who went on vacation instead of fighting fires?
Thousands of hectares of land ablaze with no signs of a let-up.
Flights late on Thursday and on Friday suffered disruption due to smog caused by blazes in dry woodland made vulnerable by the current heat wave.
Ecology groups warn that the extent of fires in forests and taiga has been misreported by up to 159 times compared with satellite evidence of the grim facts.
Il-76 plane crashed while battling wildfires; Minister vows 'We will never forget them.'
Southern Siberia hit by punishing flames causing death and destruction.
Emergency services in major operation with higher toll feared.