this is kherson, and you see that man jumping onto a russian armored personnel carrier, waving the ukrainian flag as he does. the city's mayor telling cnn earlier, the city is surrounded, russian troops are, in his words, everywhere. and in an address to the ukrainian people, president volodymyr zelenskyy urging them to keep up the resistance. >> translator: ukrainians, in all our cities where the enemy invaded, go on the offensive. go out on the streets. we need to fight every time we have an opportunity. >> cnn's scott mcclain is here with me in lviv. we talked about humanitarian corridors. what is the status of talks? >> reporter: there was a glimmer of hope yesterday, obviously didn't work out very well when the ukrainians accused the russians of bombing, continuing the bombing of the cities that