WPVI-TV reported that a man who went to visit his father's grave on Sunday morning discovered headstones toppled.
The Jewish Federation of Greater Philadelphia lists Mount Carmel as a Jewish cemetery in northeastern Philadelphia.
Mallin told the news station he believes the scope of the destruction suggests this may have been a targeted attack rather than an isolated incident.
He also added that it is "very disheartening" and "heartbreaking" that this has taken place.
Last week, almost 200 headstones were damaged at Chesed Shel Emeth Society cemetery in St. Louis, the oldest Jewish cemetery in Missouri, established in 1888.
"I'm hoping it was maybe just some drunk kids", he said.
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The discovery of the vandalized Jewish headstones in Philadelphia Sunday follows a similar incident last week in which over 150 graves were damaged at a Jewish cemetery near St. Louis.
Police said this was an act of vandalism, according to ABC 6. "Full confidence USA authorities catch and punish culprits".
The Jewish Federation of Greater Philadelphia has said they will begin raising money to speed the fix and reconditioning of affected graves at Mt. Carmel. When asked if he was speaking for himself or the Foreign Ministry, Nahshon said the statement is "semi-official".
Recently, Jewish centers across the country have been experiencing an increased number of threats. "This has got to be deliberate", said It's a historic Jewish cemetery.