Four youthful Cypriot tourists were arrested on Saturday on suspicion of having taken pot shots with an airgun at passing public buses from their balcony in a central Athens luxury hotel. Nobody was injured in the Panepistimiou Avenue attacks, in which three Athens blue buses were targeted between 3 a.m. and 2 p.m. One shot was fired at each bus, cracking a window. The young men, whose names were not made public, were arrested after police allegedly saw some of them, with an airgun, on the balcony of their room at the Grande Bretagne Hotel, where a one-night stay can cost between 260 and 2,000 euros. The weapon was confiscated. Athens blue buses have been targeted in such attacks before. In March, a passenger was slightly injured by an airgun pellet in the Piraeus suburb of Nikaia.