Rostock (dpa/mv) – In Rostock, state security is investigating in connection with swastikas on a municipal sports hall. As the police announced on Monday, strangers left 28 swastikas on the outside walls of the sports hall in the Toitenwinkel district over the weekend. The banned unconstitutional signs were discovered on Monday. The time of the crime is assumed to be Friday evening to Monday morning. Clubs, including judo and volleyball, practice in the renovated sports hall in the east of Rostock. According to the police, the graffiti was removed.