Turkish authorities have detained Istanbul Mayor Ekrem Imamoglu in connection with a corruption and terrorism investigation, according to media reports. Prosecutors have issued warrants for approximately 100 others, including businessmen and journalists, as part of this inquiry. Istanbul University has revoked Imamoglu's diploma, disqualifying him from running for president, citing "obvious error" in the degrees of 28 individuals. These detentions have triggered significant market reactions, with the Istanbul Stock Exchange falling by 7% and the Turkish lira declining against the dollar.