Russian forces pushing their grinding offensive in eastern Ukraine "appear to be" resorting to World War I-era chemical weapons in their bid to dislodge Kyiv's defending units, according to the latest battlefield update from the Institute for the Study of War.

Russia is actively using chemical weapons against the Ukrainian military, according to Captain Andrii Rudyk, a representativ

Russia's Federal Security Service (FSB) said on Tuesday that it thwarted a terrorist attack with the use of an analogue of the BZ chemical warfare agent in the Zaporozhye region, adding that three citizens of Ukraine were detained.

Russia's state Investigative Committee said on Monday it was examining the alleged use of chemical weapons by Ukrainian forces near the eastern Ukrainian towns of Soledar and Bakhmut.

In May 2024, the United States imposed new sanctions on three Russian government entities and four Russian companies in response to its full-scale war and use of chemical weapons against Ukraine.