Novichok
Salisbury poisoning: EU sanctions Russian suspects
The European Union has put sanctions on senior officials from the Russian military intelligence agency over the Salisbury poisonings.
Murder inquiry launched after Novichok nerve agent death
British police have launched a full-blown murder inquiry after 44-year-old Dawn Sturgess, who was exposed to the nerve agent Novichok last week after visiting Salisbury, died in hospital. Video, Audio
UK chemical weapons researchers investigate mystery illness
There are concerns the mysterious illness of a British couple in their forties who are critically ill could be because they were exposed to left over Novichok. Britain's chemical weapons research… Audio
Russian spy poisoning: UK vs Russia
Russia analyst Stephen Dalziel and former British Ambassador to Russia, Sir Tony Brenton, discuss the diplomatic fallout between the UK and Russia following the poisoning of former Russian spy Sergei… Audio
Russia saga continues
Valery Tereshchenko, Russia's ambassador to New Zealand, says Russia had no motive to use the military-grade nerve agent Novichok against an ex-spy in the UK. Audio