Turkish President Recep Tayyip Erdoğan warned that Ankara will deal with the escalation of opposition street protests.
"We will never allow our streets to be thrown into chaos, nor will we permit the peace of our people - especially our fellow citizens in Istanbul - to be disturbed," Erdogan said.
The latest incidents began in September when a court ordered the removal of the party's Istanbul provincial head over alleged irregularities in a 2023 congress.
Later this month, a separate court in Ankara is expected to rule on a similar case targeting the CHP’s 2023 main congress, which elected Ozgur Özel as party leader.