The 810th Marine Brigade of the Black Sea Fleet of the Russian Federation has confirmed that it deliberately uses chemical weapons against Ukrainian troops, which violates the Convention on the Prohibition of Chemical Weapons, which was ratified by Moscow, the Institute for the Study of War notes. analysis on Sunday.

The 810th Marine Brigade published a lengthy post on its Telegram channel on December 22, in which it talks about the “radical change in tactics” that Russian troops are using against Ukrainian forces in Krynk, on the eastern shore of the Kherson region, the ISV notes.

The post says that the troops of the 810th separate marine infantry brigade are rotating to the Krynyk district and are using a new tactic of “dropping K-51 grenades from drones” on enemy positions, trying to knock the Kyivans out of their held positions.

In addition, the 810th Marine Brigade additionally released images that appear to show such a launch of a K-51 at a Ukrainian position, presumably in Krynk.

According to ISW, the K-51 aerosol grenades are filled with the irritant gas CS (2-chlorobenzmalononitrile), a type of tear gas used in riot control.

The Convention on the Prohibition of Chemical Weapons prohibits the use of this means of combating mass disturbances in war, and the Russian Federation signed the Convention in 1993 and ratified it in 1997.

Earlier, ISV noted that Russian troops used K-51 grenades against Ukrainian positions in the Donetsk region in November 2022.