On the fourth day of the war, the Russian army has claimed occupation of Ukraine's capital Kyiv, while there is news of Russian army entrance in Kharkiv. Rocket and missile attacks continued on Kyiv last night. The capital Kyiv has become smoky due to the blasts. People have been warned not to open the windows of their houses. Flames have been rising since the attack on a petroleum base 40 km from Kyiv. Ukraine has also claimed retaliation. Watch this episode.