A fire has broken out in the cooling system of the Zaporizhzhya nuclear power plant in the southern Ukrainian city of Enerhodar, according to Russian accounts. The Russian-installed governor of the region, Yevgeny Balitsky, stated that there had been a Ukrainian attack in the vicinity of the power plant beforehand, state news agency TASS reported on Sunday. Balitsky asserted, however, that there was no danger since all blocks of the nuclear power plant were shut down. He added that radiation levels were within the normal range. The fire had since been extinguished, Russian authorities said. Uk…