Ukrainian forces were reportedly pushing toward a Russian nuclear power plant Saturday, despite a plea for “maximum restraint” from the head of the International Atomic Energy Agency. Fierce fighting was taking place up to 12 miles inside Russia’s Kursk region as swarms of drones and artillery fire supported Ukrainian units on Day 5 of their surprise, cross-border incursion, according to Reuters. Russia’s Defense Ministry — which on Thursday was accused of lying about conditions on the ground — confirmed intense battles around the towns of Loknya, Olgovka and Ivashkovskoye, and claimed its tro…