The U.S. Treasury Department imposed new sanctions on Wednesday against Russian agents and companies allegedly tied to a nerve-agent attack in the U.K. and election interference in the U.S. The sanctions target 15 current and former Russians with the GRU, a Russian military-intelligence organization, and are part of a broader effort by the Trump administration to punish Russia for an array of alleged actions targeting the U.S. and its allies. “The United States will continue to work with international allies and partners to take collective action to deter and defend against sustained malign activity by Russia, its proxies, and intelligence agencies,” reads the Treasury Department statement. Nine of the sanctioned intelligence agents targeted election systems or political parties and released stolen election-related documents. These nine individuals are also named in a second round of indictments by the U.S. special prosecutor earlier this year, or were implicated in the March nerve-agent attack in the U.K. in retaliation against former Russian spy Sergei Skripal. To date, the Trump administration has sanctioned 272 Russia-related individuals and entities.