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The vandalism, coming a week after a similar incident in St. Louis, prompted the Anne Frank Center to call for President Trump to make a forceful denunciation of anti-Semitic hate crimes.
"Mr. President, it's time for you to deliver a prime-time nationally televised speech, live from the Oval Office, on how you intend to combat not only #Antisemitism but also Islamophobia and other rising forms of hate," the organization posted Sunday on Twitter. "Whether or not your intention, your Presidency has given the oxygen of incitement to some of the most viciously hateful elements of our society."
The Southern Poverty Law Center recorded 1,372 bias incidents between Trump's inauguration and Feb. 7, the watchdog group reported. Among those, the group highlighted 57 incidents in 24 states of anonymous bomb threats being called in to Jewish Community Centers. The organization has also recorded that the number of hate groups in the U.S. grew in 2016 for the second straight year, with a threefold increase in the number of anti-Muslim hate groups.
The incident at Mount Carmel prompted support from the national Ahmadiyya Muslim Community USA.
"We are deeply troubled by these rising and ongoing attacks on our Jewish sisters and brothers and members from our Philadelphia chapter are in route to assist in clean up," said Nasim Rehmatullah, the organization's national vice president.
Mount Carmel Cemetery is one of four graveyards located on each corner at the intersection of Frankford and Cheltenham Avenues. No noticeable vandalism was visible at the other three cemeteries, which all appear to be for Christians.
In a statement Sunday, Mayor Kenney offered condolences to the families affected and said police would find and charge those responsible.
"Hate is not permissible in Philadelphia," he said. "I encourage Philadelphians to stand with our Jewish brothers and sisters and to show them that we are the City of Brotherly Love and Sisterly Affection."
In a post on Twitter about the incident, the Anti-Defamation League said: "We are appalled to see the desecration of another Jewish cemetery. These attacks need to end now."
The vandalism was similar to that the previous weekend in suburban St. Louis, Mo., where vandals knocked over 154 headstones at the Chesed Shel Emeth Society cemetery. Vice President Pence, who visited the cemetery, condemned the damage as a "vile act of vandalism" and said "there's no place in America for hatred or acts of prejudice or violence or anti-Semitism."
Mount Carmel Cemetery is receiving additional support as well. The Anti-Defamation League, with support from the Mizel Family Foundation, is offering $10,000 for an arrest and conviction in the case. The Fraternal Order of Police Lodge 5 is offering an additional $3,000 to the reward.
Raphael Caroline, 31, started a GoFundMe campaign Sunday to support the cemetery and was stunned to find it was nearly halfway to its goal of raising $10,000 by 8 p.m. Sunday. The Philadelphian started the campaign because of how close knit the Jewish community in Philadelphia is, he said, and planned to give a check to the Jewish Federation of Greater Philadelphia.
"I am just going to give it to them and let them allocate it in the best manner they see fit," he said.
The Jewish Federation of Greater Philadelphia is collecting donations for repairs to Mount Carmel Cemetery at www.jewishphilly.org/donate-now-mt-carmel-cemetery.
While authorities have not commented on a motive or suspects in the Philadelphia case, Silver said she believes that whoever committed the act did so because of the current political climate in the country.
"From what I can see, I can't believe a bunch of drunken teenagers did this. It's just so prevalent. It's a lot," she said. "Right away I was thinking of what happened in St. Louis. I truly believe it's anti-Semitism."
Israeli Foreign Ministry spokesman Emmanuel Nahshon called the crime a "source of worry" on Twitter.
"Philadelphia Jewish cemetery desecration is shocking and a source of worry," Nahshon wrote. "Full confidence US authorities catch and punish culprits."
Watchdog groups for hate crimes have expressed concern about a rise in such incidents
The vandalism was first noted at 9:33 a.m. Sunday when someone visiting the cemetery called police to report the toppled headstones.
Nobody answered the phone Sunday afternoon at a number listed for the cemetery and messages left there were not returned.