Police arrested at least two people after clashes broke out between rival factions of the ultra-Orthodox Gur sect in Jerusalem on Saturday night.
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The factions have been at odds for years, with clashes breaking out in Bnei Brak, Ashdod, and most recently, Jerusalem.
Tensions began when Gur's leader, Rabbi Yaakov Aryeh Alter, was reprotedly heckled by members of the breakaway faction when he visited the grave of his mother-in-law, Kan reported.
The police tried to use crowd dispersal methods to break up the clashes, during which one officer was hit by a stone, according to Kan.
Behadrei Haredim, an ultra-Orthodox news site, said that a group of Gur Jews smashed the windows of a small school belonging to the breakaway faction in Jerusalem.
The Gur community is one of Israel's largest ultra-Orthodox factions, and MK Yaakov Litzman of the United Torah Judaism party is a member.
i24NEWS contributed to this report.