Russian refineries

Ukraine is attacking Russia with long-range drones, and some of them even have artificial intelligence to help them navigate and avoid obstacles, a source close to Ukraine's drone program told CNN on April 2.

Ukraine has already responded to alleged calls by the United States to stop attacks on Russian oil refineries "by achieving its goals and very successful operations" conducted inside Russia, Deputy Prime Minister for European and Euro-Atlantic Integration Olha Stefanishyna said at the 16th Annual Kyiv Security Forum on March 22.