UK sanctions Russians it says developed chemical weapons used to kill Navalny

Britain on Monday imposed sanctions on two Russian research institutes and senior staff it said were linked to Moscow’s chemical weapons programme and involved in developing toxins used to poison Russian opposition activist Alexei Navalny.

The sanctions, cast by Britain as a way to expose and deter Russia’s use of chemical weapons, comes ahead of the NATO summit in the Turkish capital Ankara and after a similar move by the European Union....