Residents of Novosibirsk alarmed the sound of sirens in the night — in the MOE explained that it

Late in the evening on Monday, June 29, residents of the Central district of Novosibirsk disturbed by a loud sound similar to a siren, which was repeated twice with an interval of 20 minutes.

— Friends, why the screaming siren in the city centre in 23 hours? — wrote the reader.