We've already seen 780 anti-Semitic incidents this year and it's 'horrifying,' group says

At least 12 white supremacists have been arrested for their roles in attacks or plots against the Jewish community in the United States in the year since the deadly Pittsburgh synagogue shooting, according to the Anti-Defamation League.

The anti-hate group also said 2019 is on track to record another high year for anti-Semitic incidents. In the first six months of 2019, there were 780 anti-Semitic incidents, compared with 785 incidents reported during the same period in 2018, according to the ADL's count.

The ADL recorded 1,879 anti-Semitic incidents in the United States, the third-highest year on record since the group began tracking the data in 1979.

In 2017, the ADL recorded the second-highest number of such incidents at 1,986, which included physical assaults, vandalism and attacks on Jewish institutions. The 2017 number was a 57% spike in incidents over the year before, the highest single-year jump the ADL had recorded.

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"It is horrifying that in the year since the deadliest anti-Semitic attack in U.S. history, at least a dozen white supremacists were arrested after threatening to target Jewish houses of worship," ADL CEO Jonathan A. Greenblatt said in a statement Sunday.

Among the 12 white supremacist arrests the ADL tracked was the suspected gunman in the Poway, California, synagogue shooting, which left one person dead and three others injured.

The ADL also reported three other arrests of people targeting Jews in 2019.

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The report comes almost exactly a year since 11 worshippers were killed during Shabbat services at the Tree of Life synagogue in Pittsburgh. The gunman, who allegedly entered the synagogue screaming anti-Semitic epithets, is facing the death penalty if convicted.

Follow USA TODAY's Ryan Miller on Twitter @RyanW_Miller