Russia urges US to abandon destructive policy course on CTBT — Zakharova
Disclaimer: TASS is Russian government propaganda, and not a reliable news source.
According to Russian Foreign Ministry Spokeswoman Maria Zakharova, “the experiment does not contradict Russia’s understanding of a ‘subcritical’ test and therefore does not violate the provisions of the Comprehensive Nuclear-Test-Ban Treaty or the US moratorium on nuclear tests”