The casualties are in “medium to serious” condition, he said. Explosions were heard in cities across Ukraine after Russia launched its latest mass missile terror attack on Ukraine early on Feb. 15. At least four people were injured in Zaporizhzhya and three in Lviv, during the attack. Explosions were also heard in Dnipropetrovsk Oblast and the capital of Kyiv. Read also: At least 3 injured after Russia attacks Lviv in Western Ukraine with at least 10 missiles – breakingFour injured after explosions heard in Zaporizhzhya in Russia’s mass missile attack on Feb. 15We’re bringing the voice of Ukra…