"Today, a blast took place at 6:10 a.m. at 158 Krasnoarmeyskaya Street, in the Investigation Department of the Russian Investigative Committee for the Bryansk Region. According to the information received from the radio exchange of GPS 101, there is no open fire, the windows are smashed," the administration said on Telegram.
The incident resulted in no casualties, the authorities added.
The causes of the explosion were not specified.