Ukraine drone

Ukraine military developing kamikaze drones
armed with chemical weapons

Men in camouflage uniforms and blue armbands are seen in an unverified video posted on Telegram

toxic hydrocyanic acid - this substance was used in Second World War

Ukrainian forces - reportedly the 63rd Brigade - allegedly assisted in the manufacture of the chemical weapon

The chemical - a Zyklon B pesticide - has long been outlawed by international law.