Vandalism in Philadelphia Jewish cemetery (archive)
Vandalism in Philadelphia Jewish cemetery (archive)Reuters

Five tombstones were knocked over at a Jewish cemetery in Philadelphia, Philly.com reported Tuesday.

A groundskeeper discovered the toppled gravestones at the Adath Jeshurun Cemetery, which is located in Frankford in the northeast of the city.

Police said the toppled gravestones were discovered around 12:40 p.m. on Tuesday. The headstones had not been defaced by graffiti.

"When anything like this happens, it's very disappointing," said Bruce Armon, president of the cemetery's sponsoring synagogue, Congregation Adath Jeshurun in Elkins Park. "We want to make sure it remains a hallowed space."

No arrests were reported as of late Tuesday afternoon and police did not identify a suspect or a motive, according to Philly.com.

In February, vandals toppled and broke more than 100 headstones at the nearby Mount Carmel Jewish Cemetery.

In April, 30 headstones were toppled in a Jewish cemetery at Mt. Sharon Cemetery in Springfield, Pennsylvania. In that case, however, police determined that the headstones fell due to age and environmental factors and not due to vandalism.

Philly.com noted that this is not the first time vandals have struck at Adath Jeshurun Cemetery. In August 2015, at least 124 tombstones were toppled there. That case remains unsolved.