Moscow [Russia], Apr. 15 (ANI): Russian Foreign Minister Sergei Lavrov claimed on Saturday that the toxin used to poison former double agent Sergei Skripal and his daughter Yulia, was BZ toxin, as confirmed by a Swiss laboratory. "Based on the results of the examination, traces of the toxic chemical BZ and its precursors, related to chemical weapons of the second category in accordance with the Convention on the Prohibition of Chemical Weapons, were found in the samples. BZ is a nerve agent temporarily disabling a person. The effect is achieved within 30-50 minutes and lasts up to four days," said...