(Reuters) – Russian forces seized Europe’s biggest nuclear power plant in southeastern Ukraine in heavy fighting but a huge blaze on the site was put out. Russian forces also bombarded Ukraine’s capital Kyiv and surrounded several other cities. * No damage to reactors The Zaporozhzhia nuclear plant was undamaged by what U.N. nuclear chief Rafael Grossi said he believed was a Russian projectile. Moscow blamed Ukrainian saboteurs for the attack. * Ukraine says Russians driven from port city Ukrainians have driven invading Russian forces out of Mykolayiv but fighting continues on the city outskir…