The United States slapped new sanctions Thursday on 16 people and two entities associated with Iran’s drone program as it looks to punish Tehran for last weekend’s attack on Israel, Report informs via CNN.

The sanctions target executives of an engine manufacturer that supplies Iran’s Shahad-131 drones, which were used in the onslaught, as well as companies that service the engines and individuals associated with providing the drones to Iranian proxy forces throughout the Middle East.