The investigation into the possible poisoning of the Russian spy Sergei Skripal gained new momentum on March 6, as Scotland Yard announced its counter-terrorism police would take charge, and the foreign secretary, Boris Johnson, promised a “robust” response if the Kremlin’s role in the case was proved.
Skripal was found slumped unconscious on a bench in Salisbury on March 4 afternoon. The woman discovered next to him has been identified as Skripal’s 33-year-old daughter, Yulia. Both remain critically ill and in intensive care after exposure to an “unknown substance”.