Head of the Sumy Regional Military Administration Dmytro Zhyvytskyy posted this on Facebook.
According to the official, the leak occurred at 04:30 on March 21. The radius of the affected area is about 5 km.
Zhyvytskyy noted that Ammonia is a colourless toxic explosive gas with a distinct pungent smell.
Ammonia is lighter than air, so shelters, basements and lower floors should be used for protection.
As reported, the United States believes that Russia plans to conduct a false flag operation and use chemical or bacteriological weapons in Ukraine to blame the Ukrainian side and Western countries.