Fake Test sirens are sometimes turned on to check the working capacity.
The Center for Counteracting Disinformation at the National Security and Defense Council of Ukraine denied this information and reminded of the importance of air raid alarms, as well as the fact that test sirens are prohibited under wartime conditions. The Center also denied similar fakes related to air raid alarms: "There are objects that are detected by air defense, but the air raid sirens are not being activated because of them—it's a fake. After all objects being detected, even if they are small, the siren rings out. People did not have time to hide because the duty officer did not turn on the air raid siren—it's a fake. The siren is activated by the duty officer of the control center, who is present on the spot around the clock."