Russia's Black Sea Fleet warships taking part in the Navy Day celebrations in the port city of Novorossiysk in July 2023.Stringer/AFP via Getty ImagesUkrainian drones hit Novorossiysk port, causing a fire and power outages, reports say.The attack follows heightened defenses at the port after previous Ukrainian strikes on Crimea.Novorossiysk is vital for Russia's oil exports and naval operations in the Black Sea.The Russian port of Novorossiysk, which has become an important base for the Black Sea Fleet after repeated attacks on its traditional base in Crimea, has been targeted by Ukrainian drones.This attacks follows previous reports by the UK Ministry of Defence indicating that Russia has been bolstering defenses at the Novorossiysk port to protect its Black Sea Fleet from potential Ukrainian attacks.The Novorossiysk Fuel oil terminal and Transneft terminal were attacked on May 17 in yet another wartime hit to Russia's oil industry, the Kyiv Independent reported.The Kirillovskaya substation caught fire, and more than 20 thousand city residents were left without electricity, the Russian Telegram news channel Astra reported.Satellite images taken on May 18 show traces of a fire on the territory of the sea trade port.Astra reported there were no casualties.Footage emerged on social media on May 19 that appeared to show two Ukrainian drones being blasted by machine gun fire as they flew over the port.