Plane schedules disrupted, residents warned to stay indoors, sailors had to use GPS to get back to land because of thick smoke fumes from raging forest fires.

Worrying videos and pictures show how the pristine polar region of northern Yakutia is ablaze.

Greenpeace claim authorities underestimate the scale of destruction, amid warnings of lack of resources to fight fires. 

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.

Fear that thawing permafrost caused damage to storage tank.

Greenpeace concern as firefighters say they cannot extinguish 3 year blaze with smoke visible from space.

Roads blocked, planes diverted due to low visibility, schools shut, people advised to stay home.

People evacuated after thunderstorms-with-no-rain ignite foliage and forests.

Almost 3 million hectares on fire, including Arctic, with fumes having hit area larger than European Union.