The party’s office in Istanbul’s Beylikdüzü district was attacked by a group of 30 to 40 people who broke down the door, smashed windows and started a fire.
Police and fire trucks were called to the scene.
In the Darica district of Kocaeli, an unidentified person or persons opened fire on HDP’s district office. The police were called to the scene. No injuries have been reported and it is believed the office was empty at the time of the attack, CNN Turk reported.
Kurdish media has also reported attacks on HDP offices in Ankara, Izmir, Çanakkale, Hatay, and Erzincan.
The attacks come the same day at least 13 Turkish soldiers were killed and 56 wounded in a car bombing in the central city of Kayseri.
No group has claimed responsibility for the attack yet but in the hours after the bombing, President Recep Tayyip Erdogan said that “Turkey is under the threat of attacks by terrorist groups, especially the separatist terrorist organization which is trying to do its best to block Turkey’s progress,” referring to the Kurdistan Workers Party (PKK).
Erdogan has frequently accused HDP members of supporting the PKK. Many HDP MPs, including the two co-chairs, are facing terrorism charges.