Any country with Russia on bioweapons claims effectively supports Ukraine attack, US says

Any country giving "credibility" to claims by Moscow of US-funded bioweapon labs in Ukraine was effectively aligning itself with Russia's attack against Ukraine, the United States said on Friday, hours after a top Chinese diplomat said the unproven theories must be addressed.

Russia used an emergency meeting of the United Nations Security Council earlier in the day to allege an extravagant biological weapons conspiracy between the US and Ukraine, including a plot to weaponise migratory birds to spread pathogens around the world.

In a lengthy speech before the body, Russia's UN envoy, Vasily Nebenzya, said Moscow had uncovered evidence of an "emergency clean-up" by Kyiv of a military biological programme conducted by Ukraine with Washington's support.

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Vasily Nebenzya at the Security Council meeting on Friday. Photo: AP alt=Vasily Nebenzya at the Security Council meeting on Friday. Photo: AP>

The South China Morning Post was unable to verify the claims, which the US and Ukrainian governments have vehemently denied. On Friday, the UN High Representative for Disarmament Affairs, Izumi Nakamitsu, said the UN was "not aware of any biological weapons programmes" in Ukraine.

While not repeating any of the specific details of Russia's claims, China's UN envoy, Zhang Jun, said Beijing had "noted with concern" the information released by Moscow and said it "should be properly addressed".

Washington and its allies had a different take.

"What you heard from the Russian Federation, I think it's fair to say it rivals what you might see, what you might find on some of the darkest corners of the internet," said US State Department spokesman Ned Price.

Asked at a briefing about China's echoing of Russia's allegations, Price said: "The fact that any country would lend any bit of credence or credibility [to the claims] is disturbing. And it will, again, associate that country with any actions that the Russian Federation undertakes in Ukraine."

The US and others believe that Russia may be spreading the theories in order to provide cover for its own deployment of biological or chemical agents as part of a "false flag" incident.

"We've been repeatedly convinced: if you want to know Russia's plans, look at what Russia accuses others of," Ukrainian president Volodymyr Zelensky said in a video address on Thursday, as his country entered its third week under attack by Russian forces.