British Prime Minister Boris Johnson has called for a transparent investigation into what happened to Russian opposition politician Alexei Navalny, saying Britain would join international efforts to ensure justice is done.
"The poisoning of Alexei Navalny shocked the world," Johnson said on Twitter on Wednesday.
"The UK stands in solidarity with him and his family. We need a full, transparent investigation into what happened. The perpetrators must be held accountable and the UK will join international efforts to ensure justice is done."