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.
The death toll from unusually heavy snowstorms rose to ten at the weekend.
Julio Prieto, 29, from Colorado held by FSB after walking across the border from Kazakhstan.
Tyva republic registers Saudi-like heat but is also hit by wildfires.
Praise for people who give blood in Siberia's biggest city at a special nationwide action day for donors on Saturday.
Archaeologists intrigued by discovery of Bronze Age razor blade in Novosibirsk region.
With smoke having blown as far as the US and Canada, experts now say 'the trend is positive' in controlling fires raging from the Urals to the Pacific.
A 175-room Marriott hotel is to open on a landmark site in Novosibirsk, while Irtuksk is set to get both a Kempinski and a Hyatt.
Rare appearance of bear close to Novosibirsk leads to warnings to residents.