WASHINGTON — The Biden administration on Tuesday unveiled new sanctions targeting individuals in Iran and Turkey accused of procuring equipment, including European-made engines, for the Islamic Republic's drone and weapons programs. 

In coordination with the FBI, the US Treasury Department designated four entities and three people it said were part of a network operating on behalf of Iran’s Ministry of Defense and Armed Forces Logistics, which oversees several firms involved in developing the country’s drone and ballistic missile technology. 

Those hit with sanctions Tuesday include the Defense Technology and Science Research Center, an Iran-based firm conducting defense-related procurement that was previously sanctioned by the European Union. 

Also added to the Treasury Department’s blacklist was Turkish citizen Murat Bukey, whom Spanish authorities arrested in Barcelona in September 2021 at the request of US prosecutors. Among other things, Treasury accused Bukey of selling more than 100 European-origin drone engines to companies that likely shipped them to Iran. Last year, a Spanish court ruled in favor of his extradition to the United States.