The Russian invasion of Ukraine entered its seventh day on Wednesday, with fighting intensifying in Kyiv and in other big cities. Russia's defence ministry said it was planning to strike targets in Kyiv used by Ukraine's security service. Amidst the war with Ukraine, Russia's foreign minister said that if there is a third world war, then there will be a nuclear attack and it will be the most destructive. Aaj Tak's global coverage of the Russia-Ukraine war continues. Gaurav Sawant is sending the ground reports from the streets of Kyiv to us. Watch this video.