This was announced on Facebook by the head of the Luhansk Regional State Administration, Serhiy Haidai, Ukrinform reports.
War criminals, the Russian troops, used phosphorous munitions in Popasna. Destructive, devastating, and ugly force. This is what the Nazis called Brennende Zwiebel (a burning dome - ed.). This is what the Russcists are now launching on our cities. Unbelievable suffering and fires," Haidai wrote.
According to the International Committee of the Red Cross, once ignited, phosphorus burns at temperatures above 800 degrees Celsius, while fires it causes can spread over vast areas, up to several hundred square kilometers.
Such weapons can cause grave, extreme injuries or lead to a slow, excruciatingly painful death.
Additional Protocols to the 1977 Geneva Convention effectively prohibit the use of white phosphorus munitions if they pose a threat to civilians.
On February 24, Russian President Putin launched an invasion of Ukraine. Russian troops have been shelling and destroying key infrastructure, massively shelling and bombing residential areas.
Martial law was imposed in Ukraine and general mobilization was announced.
The International Criminal Court has begun documenting and investigating Russia's war crimes in Ukraine.