Video posted to YouTube by ACOM NY

The caretaker at a Philadelphia mosque said he found a severed pig's head on the sidewalk, and police were investigating whether someone may have thrown it out a car window.

The caretaker told police he found the head near the door of the Al Aqsa Islamic Society when he arrived around 6 a.m. Monday.

Police said surveillance video shows a red pickup slowing down in front of the mosque on Sunday night. The truck then circles the block and an object was thrown from the passenger window as the vehicle passes a second time.

The Quran, the holy book of Islam, prohibits Muslims from eating pork, and pigs have been used to taunt or offend Muslims. Last year, attackers in Greece placed a severed pig's head and painted anti-Muslim slogans outside an Islamic studies center in Athens.

The incident in Philadelphia was condemned by Mayor-elect Jim Kenney.

"The bigotry that desecrated Al-Aqsa mosque today has no place in Philadelphia. The City of Brotherly Love and Sisterly Affection has a long history of coming together in the face of challenge," Kenney said in a statement Monday night.

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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