The police and other authorities are practicing on Wednesday in the parliamentary and government quarters in Stockholm. Police vehicles and police with weapons may be seen, and bangs may occur, the police write on their website.
Parts of Riksgatan will be blocked from 8.45 to 11. During this time, pedestrians are referred to Bankkajen and Norrbro.
The purpose of the exercise is to "strengthen the joint resilience in serious events", the police write.
The exercise lasts until 4 pm.