Pentagon push secretary John Kirby said in a assertion Monday, Ukrinform reports, referring to CNN.

“These reports, if legitimate, are deeply relating to and reflective of worries that we have had about Russia’s opportunity to use a wide range of riot regulate brokers, such as tear gas combined with chemical brokers, in Ukraine,” Kirby stated.

Read also: Russia’s chemical attack on Mariupol: A few people impacted

In accordance to Kirby, the Pentagon will keep track of the problem carefully.

As Ukrinform noted, Andriy Biletsky, the founder of the Azov Regiment, explained that Russian troops in Mariupol made use of a toxic substance of mysterious origin, which was dropped from a UAV.

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