Turkey detained two co-leaders of Turkey’s pro-Kurdish Peoples’ Democratic Party and nine other HDP lawmakers early Friday, citing their reluctance to give testimony concerning crimes linked to “terrorist propaganda.”

The Turkish Interior Ministry said that detention orders were issued for 13 members of parliament but that only 11 were detained because two were abroad. Lawyers had earlier said 15 lawmakers were detained.

Turkish police raided the Ankara house of co-leader Selahattin Demirtas and the house of co-leader Figen Yuksekdag in Diyarbakir, the largest city in Turkey’s mainly Kurdish southeast, the party’s lawyers told Reuters.

“HDP call international community to react against Erdogan Regime’s coup,” the party said on Twitter, referring to President Recep Tayyip Erdogan.

Police also raided and searched the party’s head office in central Ankara. Television images showed party officials quarreling with police during the raid, and a witness to the raid told Reuters that many police cars and armed vehicles had closed the entrances to the street of the HDP headquarters.

A group of protesters chanting slogans tried to reach the party offices, but they were stopped by police before they could enter the street, a witness said.

“Very bad news from Turkey. Again. Now HDP members of parliament are being detained,” the European Parliament’s rapporteur for Turkey, Kati Piri, said on Twitter.

Widespread difficulties in reaching social media websites such as Twitter and Facebook and as the messaging app WhatsApp were reported across Turkey after the detentions started at midnight.

HDP is the third-largest party in the 550-seat Turkish parliament, with 59 seats. Legislators in Turkey normally enjoy immunity from prosecution, but the pro-Kurdish party’s immunity was lifted this year.

Turkey has accused the HDP of links to the Kurdish militant group PKK, which is deemed a terrorist organization by the United States, the European Union and Turkey.