In Turkey, thousands of opposition protesters continued a 250-mile march from Ankara toward Istanbul Thursday, protesting the authoritarian government of President Recep Erdogan and his moves to detain and fire hundreds of former prosecutors and judges.

Protester: “We are not going to get tired. We will continue our march for justice. We will continue our struggle for it to the very end.”

The marchers are set to arrive Saturday for a mass rally in Istanbul amid heavy security. Their protest comes as Turkey continues to detain Idil Eser, the director of Amnesty International’s Turkey office, as well as other human rights defenders.