This was reported by the Ministry of Foreign Affairs of Ukraine:
"Today we are traveling to a friendly Poland. International airports of three more Polish cities of Wroclaw, Krakow and Katowice changed the spelling of Ukrainian cities in Latin spelling to the correct ones: # KyivNotKiev, #LvivNotLvov, #KharkivNotKharkov”.
Therefore, six international airports in Poland have already joined the campaign of the Ministry of Foreign Affairs #CorrectUA.
Earlier it was reported that the spelling of Ukrainian cities was changed in 26 airports in the world.