The German far-right party has gathered to elect its leaders, as German parties do every two years. The aim is to extend the terms of office of leaders Alice Weidel and Tino Chrupalla, who have led the party together for four years.
The meeting has led to widespread demonstrations, with several thousand people gathering to protest against the party, which is Germany's largest opposition party at the national level.
The established parties in the country have repeatedly said that they do not intend to cooperate with the AfD.
This weekend's meeting has sparked controversy as it coincides with the 100th anniversary of a Nazi party meeting held nearby - which solidified Adolf Hitler's power over the fascist movement.
