The United States is planning a new set "severe" sanctions on Russia over the alleged attempt by Kremlin agents to kill a turncoat spy in Britain, a State Department official said Thursday.
Assistant Secretary of State Manisha Singh told a congressional hearing that Russia has not yet accepted demands that it come clean about its production of the Novichok nerve agent used in the March 4 attempt to kill former double agent Sergei Skripal and his daughter in Salisbury, England.