The Latest on the dispute between Poland and Israel (all times local):

11:35 a.m.

Poland's prime minister says his country is not sending a delegation to a meeting in Jerusalem after the acting Israeli foreign minister said that Poles "collaborated with the Nazis" and "sucked anti-Semitism from their mothers' milk."

The developments mark a new low in a bitter conflict over how to remember and characterize Polish actions toward Jews during the German occupation of Poland in World War II.

Polish Prime Minister Mateusz Morawiecki called the remarks by acting foreign minister Israel Katz "unacceptable" and "racist."

Morawiecki had already announced Sunday that he was pulling out of the meeting in Israel on Monday and Tuesday with Israeli Prime Minister Benjamin Netanyahu and leaders of four central European nations. That had followed a comment by Netanyahu last week about Polish cooperation with the Nazis.

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10:05 a.m.

A government official says Poland is considering pulling out altogether from a visit to Israel over a comment made by the acting Israeli foreign minister, the latest in a bitter new Holocaust spat between the two nations.

Polish Prime Minister Mateusz Morawiecki already pulled out of the meeting Monday and Tuesday to Israeli Prime Minister Benjamin Netanyahu by leaders from Poland, Hungary, the Czech Republic and Slovakia. Foreign Minister Jacek Czaputowicz was tapped to go in his place.

On Monday, Michal Dworczyk, the head Morawiecki's office, said Czaputowicz's attendance is now in doubt over comments made by Israel Katz, the acting foreign minister.

Katz said Sunday that Poles "sucked anti-Semitism from their mothers' milk," citing something once said by former Prime Minister Yitzhak Shamir, whose father was murdered by Poles.