Ivanka Trump took to Twitter to show her support for the Jewish community after 11 Jewish Community Centers were targeted with bomb hoaxes on President's Day.

She tweeted: 'America is a nation built on the principle of religious tolerance. We must protect our houses of worship & religious centers. #JCC.'

On Monday 11 JCCs were evacuated in Birmingham, Cleveland, Chicago, St. Paul, Tampa, Tulsa, Nashville, Milwaukee, Houston and Buffalo after receiving the threats. All appear to be hoaxes and no one has been injured.

They come after the FBI launched a hate crime investigation into JCCs after 60 threats were received in January.

The First Daughter, who flew back to Washington D.C. on Monday after spending the weekend in Mar-a-Lago, converted to Orthodox Judaism when she was 27 before marrying Jared Kushner.

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Ivanka Trump, pictured flying out of Palm Beach with her children yesterday, spoke out against recent attacks on the Jewish community

Ivanka Trump took to Twitter to say: 'We must protect our houses of worship & religious centers' after 11 JCC's had bomb threats in one day (pictured with husband Jared Kushner and their children stepping off of Air Force One at Joint Base Andrews in Maryland last night)

Ivanka Trump took to Twitter to acknowledge the spike in bomb threats on JCCs. Last week, her father berated a Jewish reporter for asking why the administration has stayed silent

FEBRUARY 20 JCC BOMB THREATS Eleven Jewish Community Centers in the US were targeted with bomb hoaxes on President's Day. JCCs in the following cities were evacuated: Levite JCC (Birmingham) Tampa JCCs and Jewish Federation (Off-site preschool only) Hyde Park JCC (part of JCC Chicago) JCC of the Greater St. Paul Area JCC of Greater Albuquerque Jewish Community Center of Greater Buffalo (both sites) Mandel JCC of Cleveland Jewish Federation of Tulsa Gordon JCC (Nashville) Evelyn Rubenstein Jewish Community Center of Houston The Harry & Rose Samson Family Jewish Community Center (Milwaukee) Source: JCC Association of North America Advertisement

In regards to the most recent threats, the FBI said in a statement: 'The FBI and the Justice Department's Civil Rights Division are investigating possible civil rights violations in connection with threats to Jewish Community Centers across the country.'

The FBI has labeled these bomb threats hate crimes, not terrorism.

In January alone, JCCs received 60 bomb threats in the US and Canada.

David Posner, director of strategic performance at JCC Association of North America said in a statement: 'While we are relieved that all such threats have proven to be hoaxes and that not a single person was harmed, we are concerned about the anti-Semitism behind these threats, and the repetition of threats intended to interfere with day-to-day life.'

Ivanka and her husband Jared Kushner were photographed hosting Shabbat last month, inviting members of Team Trump to observe the Sabbath with them.

Former First Daughter Chelsea Clinton, who is also Ivanka's friend, also took to Twitter and criticized President Trump for not commenting on the attacks or the Jewish cemetery vandalism in St. Louis Monday.

She wrote on Twitter with a link to a statement by JCC North America: '<2 months into 2017: 'JCC bomb threats, synagogue defamed, subway swastikas, Jewish cemetery desecrated. NOW will Trump condemn antisemitism?'

Many took to Twitter to echo Clinton's sentiments, pointing to the President's lack of action towards minority targeted hate.

Although the President himself has not commented on the attacks, White House press secretary Sean Spicer responded to the nationwide threats, telling NBC News: 'Hatred and hate-motivated violence of any kind have no place in a country founded on the promise of individuals freedom.'

Chelsea Clinton bashed President Trump's silence towards the recent wave of anti-Semitism

Police investigate a bomb threat at Marin County Jewish Community Center earlier this month. There have been 69 bomb threats at JCCs since the beginning of this year

Investigators with the University City Police Department are working to determine who knocked over or damaged several headstones at a Jewish cemetery in St Louis

VANDALS TARGET JEWISH CEMETERY NEAR ST. LOUIS On February 20, over 100 gravestones were damaged at Chesed Shel Emeth Cemetery, a historic Jewish Cemetery in University City. Police suspect it was a group crime and not the act of a single vandal. They have not said whether or not it is considered a hate crime. On January 18, several Jewish Community Centers were evacuated because of a bomb threat. Source: Fox2Now Advertisement

'The President has made it abundantly clear that these actions are unacceptable.'

Spicer's statement comes less than a week after her father berated a Jewish reporter for asking why the Trump administration has not acknowledged the recent spike in anti-Semitism.

President Trump responded to the Ami Magazine reporter, saying the question was unfair, continuing: 'So here’s the story, folks. Number one, I am the least anti-Semitic person that you’ve ever seen in your entire life. Number two, racism, the least racist person.'

Previously, on November 13, Trump told supporters on 60 Minutes to 'stop it' when it comes to racially motivated attacks.

And many questioned whether or not the White House intentionally failed to mention Jews as victims of the Holocaust when they sent out the statement for the day of remembrance.

After Ivanka's tweet, people started tweeting at her father questioning his silence