London - The poison that struck down two Britons has been identified as the same strand of Novichok nerve agent that was used in the attempted murder in March of a former Russian agent and his daughter, Britain's interior minister Sajid Javid said on Thursday.
Javid said it is likely that the pair came into contact with it at a different site from Yulia and her father Sergei Skripal, a former colonel in Russian military intelligence.
He said it has not yet been possible to ascertain whether the nerve agent is from the same batch of Novichok.
"This has been identified as the same nerve agent that contaminated both Yulia and Sergei Skripal," Javid told parliament.
British Prime Minister Theresa May said on Thursday it was deeply disturbing to see two British citizens poisoned by the Novichok nerve agent.