Moscow-Sana
The Russian capital, Moscow, declared the yellow danger level after thick fog shrouded its sky, and the visibility became no more than two hundred meters.
According to the agency sputnik operates airports to modify their work schedule, where canceled about 30 flights were delayed and five flights at least as sending dozens of aircraft to alternative airports were.
The authorities warned motorists not to drive quickly, calling on them to take the necessary precautions.