As the nationalist march, organized by All-Polish Youth and the National Radical Camp (ONR), set off from the Dmowski roundabout in the centre of Warsaw – named after the 1930s Polish nationalist leader Roman Dmowski – flares, stones and bricks were thrown at police by ia crowd that included masked demonstrators.
Police responded with rounds of tear gas to control the crowd, which was several thousands strong at that point.
One of the organisers of the nationalist march, All-Polish Youth’s Robert Winnicki, said that brawls occurred with police after masked men appeared “and attacked the police cordon and then fled”.