First daughter Ivanka Trump is calling for religious tolerance after Jewish community centers across the country on Monday received phoned-in bomb threats.

"America is a nation built on the principle of religious tolerance," Trump tweeted Monday.

"We must protect our houses of worship & religious centers. #JCC."

America is a nation built on the principle of religious tolerance. We must protect our houses of worship & religious centers. #JCC — Ivanka Trump (@IvankaTrump) February 20, 2017

Trump converted to Judaism before marrying her husband, Jared Kushner.

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Her comments come after the JCC Association of North America reported that 11 Jewish community centers received bomb threats Monday, including centers in Chicago, Houston and Tampa. The threats were determined to be hoaxes.

The White House denounced the latest wave of bomb threats, saying "hatred and hate-motivated violence of any kind have no place in a country founded on the promise of individual freedom."

Many Jewish community centers have received bomb threats since the beginning of the year.

There have been 69 incidents at 54 JCCs in 27 states and one Canadian province, according to the JCC Association of North America. All threats were determined to be hoaxes.

During a press conference last week, President Trump clashed with a Jewish reporter over a question about the rising number of anti-Semitic incidents and what he would do to address an uptick in anti-Semitism.

The president said the question was "insulting" and called himself the "least anti-Semitic person you've ever seen in your entire life."