Fake The Security Service of Ukraine booby-trapped a chlorine storage facility in Pervomaisky.
This is the thesis spread by Russian propaganda media. The reports claim that SBU officers were replacing the chlorine storage in the Kharkiv region, namely at the Khimprom enterprise in the town of Pervomaisky. However, this is a fake. As StopFake fact checkers write, there are no chlorine storages at the Khimprom plant in Pervomaisky because it ceased to exist many years ago.