Hundreds of activists and victims of Turkey’s post-coup crackdown gathered in front of the European Court of Human Rights (ECtHR) in Strasbourg on Friday to protest rights violations in Turkey.

Protestors, joined by former leader of the UK’s Labour Party Jeremy Corbyn and EU parliamentarians, asked the ECtHR to take swift action against them.

The crowd, around 1,500 strong, marched toward the ECtHR building in Strasbourg. They chanted slogans and carried banners that said, “ECtHR, stop injustice in Turkey,” “Justice delayed is justice denied,” “Victims are here, where are the judges?” and “ECtHR, stop the purge in Turkey.”

The Turkish government and Erdoğan accuse the Gülen group of masterminding the failed coup on July 15, 2016 and has designated the group as a terrorist organization. The group denies involvement in the coup attempt or any terrorist activity.