Kyiv on Tuesday blamed Russia and urged action after the international chemical weapons watchdog said banned riot control gas had been found in Ukrainian soil samples from the front line.
Russia and Ukraine have accused each other of using chemical weapons in the conflict, with Kyiv’s Western allies claiming Moscow has employed banned weapons.
“We call on our partners to take decisive action to stop the aggressor and bring those responsible for crimes to justice. True peace can only be achieved through strength, not appeasement,” the foreign ministry said.
“Russia’s use of banned chemicals on the battlefield once again demonstrates Russia’s chronic disregard for international law,” a statement added.
Russia is yet to react to the report by the Organisation for the Prohibition of Chemical Weapons (OPCW), which brought the first confirmation of the use of riot control gas in areas where active fighting is taking place in Ukraine.
The OPCW’s Chemical Weapons Convention strictly bans the use of riot control agents including CS, a type of tear gas, outside riot control situations when it is used as “a method of warfare”.
CS gas is non-lethal but causes sensory irritation including to the lungs, skin and eyes.
The evidence handed over by Ukraine to the OPCW enabled it to “corroborate… the chain of custody of the three samples collected from a trench in Ukraine located along the confrontation lines with the opposing troops, had been maintained,” the organisation said.
It stressed however that the report did “not seek to identify the source or origin of the toxic chemical”.
OPCW director-general Fernando Arias “expressed grave concern” over the findings.
“All 193 OPCW Member States, including the Russian Federation and Ukraine, have committed never to develop, produce, acquire, stockpile, transfer or use chemical weapons,” he said in a statement.
