Even before Karadzic’s transfer to the Hague, the anger of his supporters had boiled over in the streets.
Thousands gathered in Belgrade on Tuesday night to protest against his seemingly imminent extradition.
They may be in the minority in Serbia but Karadzic’s followers are fiercely loyal to a man they regard as a hero.
The authorities had predicted trouble and it erupted as the rally in the city centre was drawing to a close.
The event was organised by the Radical Party, which narrowly lost last May’s general election.
They accuse the pro-Western ruling coalition formed after the ballot of treason.