Switzerland adopted further sanctions in connection with Iran's drone deliveries to Russia, in line with European Union measures, the government said in a statement on Friday.
The sale, supply, export and transit of components used for the manufacture and production of drones is now prohibited, and targeted financial and travel sanctions against persons and entities connected with support for Iran's drone program are in place, added Switzerland's Federal Council.
The United States on Wednesday placed sanctions on entities and people based in several countries for aiding the Iranian attack drone program, which Washington accuses of supplying such weapons to Russia for use in Ukraine.
The US Treasury said it put sanctions on five entities and two people who were part of a network helping procure sensitive parts - including servomotors, which help control position and speed - for Iran's unmanned aerial vehicle (UAV) program.
The network facilitated shipments and financial transactions for the Revolutionary Guard Corps' procurement of such motors used in Iran's Shahed-136 drones, it said, adding that a motor procured by the network was found recently in the remains of a Russia-operated Shahed-136 drone shot down in Ukraine.