Ukraine soldiers stranded in Mariupol stated late Monday that the Russians had deployed “a deadly material of unknown origin” – but evidence of a chemical weapons attack remained difficult to come by in the ensuing 24 hours. Victims were characterized as experiencing “respiratory failure” and a somewhat precise diagnosis of “vestibulo-atactic syndrome,” supposedly inner-ear difficulties leading to dizziness, vomiting, eye twitching, and loss of balance, according to a brief initial report circulating on social media. Watch the full video to know what ABP News found.