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A cleanup operation is underway across northwest Russia after violent storms damaged houses, brought down trees and caused flooding and power cuts.
Nearly 100,000 people in 1,500 towns and villages were without power around the Russian city of Saint Petersburg on Monday. The cold front advancing from the northwest is currently sweeping across Moscow, bringing heavy rainfall and colder temperatures. Meanwhile, firefighters say they have succeeded in containing wildfires around the capital.
But, the smog has returned. Authorities say carbon monoxide levels in the air are at the maximum safe limit, but the amount of hydrocarbons is twice the permissible level. The situation is expected to improve with a wind change later on Tuesday.