Twenty-three people were arrested after riots on Sunday in Copenhagen, according to Danish police.<br /><br />Tensions mounted during counter-protests against a demonstration by a right-wing activist.<br /><br />A video shot in Norreport showed several fires burning in the street.<br /><br /><br />The unrest spread on Sunday to several parts of the city after Rasmus Paludan, the founder of the anti-immigrant party Hard Line, held a demonstration.
