Britons do not find the Skripal resource

london - Experts from the British army have failed to trace the origin of the nerve gas used in the attack on the former Russian spy Sergei Skripal. That is what the head of the military research center declared on Tuesday.

This also did not determine whether the substance was made in Russia. What is certain is that it is the nerve gas Novitsjok, a military chemical weapon that dates from the Soviet era.

London thinks that Moscow is behind the attack. Meanwhile, Great Britain has expelled dozens of Russian diplomats, just like many other Western countries.