WARSAW (Reuters) -A drone or similar object struck a residential building in Wyryki in eastern Poland but nobody was injured, the local mayor told state-run news channel TVP Info. Poland shot down drones that entered its airspace during a large Russian attack in western Ukraine on Wednesday, with the NATO member calling the incursion "an act of aggression". "At 6:45 a.m., I received a phone call from one of the office workers saying something had fallen," Wyryki mayor Bernard Blaszczuk told TVP Info.