Russians fired a "chemical aerosol munition with suffocating effect on one of the positions," Valeriy Shershen, a spokesperson for the Joint Press Center of the Tavria Defense Force, said, according to Ukrinform's translation. But then "the wind blew in the enemy's direction," he added.
Shershen made the comments on Ukrainian TV, according to Ukrinform, with his comments picked up by other Ukrainian media outlets, including the Kyiv Post, The New Voice of Ukraine, Pravda, and the state broadcaster Suspilne.
Suspilne and Pravda reported that Shershen claimed the chemical was prohibited.
Shershen did not identify the gas, nor say whether any Ukrainian or Russian troops were affected.