This is reported by RBC with reference to data from the police department and local media.
The incident occurred at 11:45 local time (13:45 Moscow time), when there was a crowd of people in the room.
At the same time, the Vijesti agency notes that the cause of the emergency was not a bomb explosion, but a hand grenade. The 39-year-old Mladen Bulatovich who activated it died on the spot.
According to Interfax, paramedics, firefighters and police are working at the scene of the incident at the Main Court of Montenegro. An investigation has been launched.
Earlier it became known that Russian security forces stopped the preparation of an explosion in a Moscow region court: the creator of a homemade bomb was detained at the time of its manufacture and put on trial. The attacker was jailed for 19 years for preparing a terrorist attack.