Russia asked to come clean on novichok after Navalny poisoning

Moscow pressed over details of chemical weapons programme as Nato mulls next steps

Russia is under pressure to reveal details of its novichok chemical weapons programme after Nato called for an impartial international investigation into the appalling" poisoning of Alexei Navalny.

Nato's secretary general, Jens Stoltenberg, convened a meeting of member states to discuss the latest findings from Germany on the Russian opposition leader, who collapsed last month on a flight from Siberia to Moscow.