Dozens of pro-Palestinian demonstrators clashed on Sunday with the police and counterprotesters near a synagogue in Brooklyn, where a far-right Israeli national security minister had been expected to speak, according to the police and video footage of the protest.

It erupted in front of the Edmond J. Safra Synagogue in the neighborhood of Gravesend on Sunday morning, according to the police and video footage. That synagogue is across the street from Congregation Shaare Zion, the synagogue where the security minister, Itamar Ben-Gvir, was expected to speak, according to members of both synagogues. His talk, which was scheduled for around 9:30 a.m., was canceled, the members said.

As word of the protest spread, supporters of Israel from the neighborhood flocked to the area. At least six people were taken into custody, the police said. Whether they were pro-Palestinan or pro-Israel demonstrators was unclear.

Several days of demonstrations had preceded the visit of Mr. Ben-Gvir, whose appearances brought pro-Palestinian and pro-Israel groups face-to-face in heated exchanges and troubling episodes — some of them in Brooklyn neighborhoods with large Orthodox Jewish populations.

On Thursday, pro-Palestinian demonstrators gathered outside Chabad Lubavitch World Headquarters on Eastern Parkway in Crown Heights, Brooklyn, where Mr. Ben-Gvir was to speak. The headquarters is an important religious site in the Hasidic community, and intense clashes erupted between protesters and counterprotesters outside, videos posted on social media by members of both sides show.

At one point, hundreds of men and boys, most of them Jewish, surrounded a woman, according to videos of the episode. It was unclear what prompted them to close in around her or whether she was even involved in the protests.