The nine aircraft made flights in Sochi went to the spare airport due to fog and low vision. About this in your telegram channel report Representatives of the Federal Aviation Agency Artem Korenyako.

He noted that the first plane arrived at the reserve airport at 16:40 Moscow.
Tonight, April 3, at the area of Sochi airport with fog, the ability to display is low. Fix flights of weather conditions affecting the operation of Air port. According to 19:00 Moscow, nine aircraft made flights in Sochi to the backup airport (Grozny, Makhachkala.
In this regard, the departure flights were also delayed, he added.
All airport services in Sochi operate in intensive mode, additional staff is related to the purpose of maintenance of the maximum operation of aircraft and passengers. In addition, the supervision of air transport in southern Russia has been strengthened, Korenyako concluded.