The two co-leaders of Turkey’s pro-Kurdish opposition party have been detained along with other MPs.
Selahattin Demirtas and Figen Yuksekdag were detained at their respective homes as part of a counter-terrorism inquiry, security sources quoted by Anadolu news agency said.
At least nine other MPs from the People’s Democracy Party (HDP) were also taken into custody.
Yuksekdag and Demirtas face prosecution under anti-terrorism laws after their parliamentary immunity was lifted earlier this year, along with other lawmakers from Turkey’s main political parties.
Hours later, there were reports of a massive explosion in southeast Turkey.
Ambulances were sent to the scene of the blast in Diyarbakir, the city where Mr Demirtas was arrested.