The European Union and Britain imposed sanctions on top Russian officials close to President Vladimir Putin on Thursday in an unexpectedly robust and swift response to the August poisoning of Kremlin critic Alexei Navalny.
Pushed by France and Germany, where Navalny was treated after collapsing on a flight from Siberia, the EU and Britain targeted six Russians and a state scientific research centre.
The Kremlin condemned the sanctions as a deliberate and unfriendly step against Moscow and promised retaliation.

