US's Sullivan warns Russia about using bio weapons, in highest-level talk on looming concern

In the escalating concern about biological weapons being used in Russia's invasion of Ukraine, White House national security advisor Jake Sullivan on Wednesday purportedly warned a top Russia official about deploying them. 

Sullivan spoke by phone with Gen. Nikolay Patrushev, secretary of the Russian Security Council, marking the highest level engagement between the countries since the invasion nearly three weeks ago, according to the Associated Press.

Sullivan warned Patrushev about "the consequences and implications of any possible Russian decision to use chemical or biological weapons in Ukraine," said U.S. national security council spokesperson Emily Horne. 

The White House has accused China of spreading Russian disinformation that could be a pretext for Russian President Vladimir Putin’s forces to attack Ukraine with chemical or biological weapons.

Patrushev said Washington need to stop its support for "neo-Nazis and terrorists in Ukraine" and supplying weapons to the "Kyiv regime," said council spokesman Yevgeny Anoshin, the wire service also reports.