A Turkish court has banned all services of Periscope, a live video broadcasting platform owned by Twitter popularly used by opposition deputies, Turkey’s state-run news agency reported last week.

The ban came several weeks before a referendum on a constitutional package that would switch Turkey to an executive presidency.

According to the relevant media reports, the court issued an interlocutory injunction over the activities of Periscope’s www.periscope.tv website and @periscopeco Twitter account after a Turkish company named Periskop İletişim ve Prodüksiyon Hizmetleri LTD. ŞTİ complained to the court over copyright violation.

Turkey will hold a referendum on April 16 that will introduce an executive presidency in the country and enormously expand the powers of President Recep Tayyip Erdoğan if approved.