International

The nerve agent that poisoned the Russian spy Sergei Skripalwas planted in his daughter’s suitcase before she left Moscow, intelligence agencies now believe.

Senior sources have told the Telegraph they are convinced the Novichok nerve agent was hidden in the luggage of Yulia Skripal, the double agent’s 33-year-old daughter.

They are working on the theory that the toxin was impregnated in an item of clothing or cosmetics or else in a gift that was opened in his house in Salisbury, meaning Miss Skripal was deliberately targeted to get at her father.