On Friday, thousands of people, mostly women, protested in Warsaw and other cities against proposals to reject the treaty.
“The aim is to legalise domestic violence,” Marta Lempart, one of the protest organisers said on Friday at a march in Warsaw. Some protesters carried banners saying “PiS is the women’s hell”.
PiS has long complained about the Istanbul Convention, which Poland ratified under a previous centrist government in 2015. The government says the treaty is disrespectful towards religion and requires teaching liberal social policies in schools, although in the past it has stopped short of a decision to quit.
Ziobro, the justice minister, represents a smaller right-wing party within the ruling coalition. A government spokesman was not available on Saturday for comment on whether Ziobro’s announcement of plans to quit the treaty represented a collective cabinet decision.