It is reported by RIA Novosti.
It is specified that the sappers arrived at the scene and started work around 19:20 (20:20 Moscow time), and after about an hour and a half there was a loud bang.
The agency, citing a source close to the police circles, reports that the detonator was separated from the suspicious object from the combustible substance, after which the extraction of materials began.
They will be sent for examination.
On May 6, an unidentified person threw a bottle through the office window and broke the window.
Later, when cleaning the fragments, a suspicious object was found in the recess of the facade wall.
The police and sappers were called to the scene.