A Russian drone has struck the Bernardine monastery, a 16th-century church in Lviv’s Unesco-listed medieval centre, causing damage, local authorities said. The attack came as Russia launched a huge wave of nearly 1,000 drones at Ukraine, killing at least seven people, as Moscow appears to be stepping up a spring offensive intended to break Ukrainian resistance along the front. Ukrainian officials said Moscow fired nearly 400 long-range drones and 23 cruise missiles overnight, followed by another 556 drones in an unusual daytime assault on Tuesday, hitting cities across the west of the country.