Ukraine alleges Russia increasingly using tear gas illegally in battle

Ukrainian military officials say that Russia has increased its illegal use of riot control agents on the battlefield to try to make larger advances.

The Ukrainian military says Russia has ramped up its illegal use of riot control agents on the front to try to clear trenches as it begins to make bigger advances in the east more than two years since its full-scale invasion.

Riot control agents such as tear gas are banned on the battlefield by the international Chemical Weapons Convention, which Russia and Ukraine are signatories to.