The CEO of the Istanbul Stock Exchange, Korkamaz Ans Argon, was arrested on suspicion of bribery and participation in a criminal organization, Anadolu Agency reports. The investigation is related to the collapse of gates in September in the Turkish stock market. As part of the case, the authorities have already arrested 120 people, frozen assets of 453 people and legal entities and liquidated 131 investment funds serving 455 thousand investors.