(CNN) In the first three months of this year, the number of anti-Semitic incidents in the US was 86% higher than the same period last year, says a new report.

The report, released Monday by Anti-Defamation League, counted 541 anti-Semitic attacks and threats between January and March.

There were 281 incidents in the same time period in 2016.

Overall, the picture was pretty grim last year too.

The ADL says anti-Semitic were up by more than a third last year, compared with 2015. And the numbers skyrocketed since November. There were 34 cases that were linked directly to last year's presidential election.

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