US sanctions Turkish bank over Iran ties

On September 4, 2026, the United States imposed sanctions on a Turkish investment bank and two of its subsidiaries, accusing it of acting as a 'critical financial lifeline' for Iran. The US Treasury stated that the bank allegedly conducted transactions for Iran's Islamic Revolutionary Guard Corps (IRGC), providing Tehran access to the global financial system. The move is part of Washington's broader efforts to increase economic pressure on Iran. The sanctions target the bank's ability to operate internationally, aiming to cut off funding channels to the IRGC.