I got this information from the fans on EXO-K's Official Fanboard just minutes ago. They said that there's word that a sasaeng hit Baekhyun on the head. Someone also said that Chanyeol got hit too but Baekhyun had it worse. Probably at the airport. Now this information has not been confirmed yet. As of now, there has been no pictures. They're leaving for Japan right now.