One hundred antisemitic incidents occurred in the 10 days following the presidential election, representing about 12 percent of hate incidents in the US recorded by a civil rights watchdog.

The report released Tuesday by the Southern Poverty Law Center looked at 867 hate incidents that occurred in the 10 days following the election of Donald Trump. The incidents targeted various minority groups, including Jews, immigrants, African-Americans, Muslims and the LGBT community. Incidents counted had been submitted through the watchdog’s website or reported in the media.

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Of the 100 incidents classified as antisemitic, 80 were “vandalism and graffiti incidents of swastikas, without specific references to Jews,” while others targeted Jews more overtly, such as the harassment of  individuals or vandalism of a synagogue, the report said. Many of the vandalism incidents included references to Trump, the nonprofit said.

The report referred to an attack prior to the election on a historically black church in Mississippi as “a harbinger of what has become a national outbreak of hate, as white supremacists celebrate Donald Trump’s victory.” (Trump campaign manager denies influence from extreme-right groups)

JTA has reported on antisemitic incidents following the election, including acts of vandalism featuring swastikas and Trump-related themes left in public areas as well as on the homes of Jewish individuals.

Earlier this month, the head of the Anti-Defamation League, Jonathan Greenblatt, said anti-Jewish public and political discourse in America is worse than at any point since the 1930s.

The election season saw the rise of the “alt-right,” a loose far-right movement whose followers traffic variously in white nationalism, anti-immigration sentiment, antisemitism and a disdain for “political correctness.”

Many alt-right members, including prominent white nationalists, have been vocal in their support for Trump, who has called for a ban on Muslim immigration to the US and likened Mexican immigrants to rapists.

The president-elect said last week that he did not want to “energize” white supremacists and denounced an alt-right conference in Washington, DC, where speakers railed against Jews and several audience members did Hitler salutes.

The Southern Poverty Law Center report said that the 867 incidents “almost certainly represent a small fraction of the actual number of election-related hate incidents,” citing a Bureau of Justice Statistics estimate that two-thirds of hate crimes are not reported to the police.

The document also noted that 23 of the incidents reported were anti-Trump, including harassment of supporters of the president-elect.