The US Treasury Department has announced that it is levying sanctions against four Iranian companies that it says were involved in sending drones to Russia last month for use in Moscow's war against Ukraine. Tehran-based Safiran Airport Services, Paravar Pars Company, Design and Manufacturing of Aircraft Engines, and Baharestan Kish Company were all hit with the new sanctions. Russia is making increasingly desperate choices to continue its unprovoked war against Ukraine, particularly in the face of our unprecedented sanctions and export controls, said Brian Nelson, under secretary of the Treasury for terrorism and financial intelligence on Thursday. The United States is committed to strictly enforcing our sanctions against both Russia and Iran and holding accountable Iran and those supporting Russia's war of aggression against Ukraine." Safiran coordinates Russian military flights between Iran and Russia, including those that US intelligence officials say transported Iranian unmann