The NYPD is investigating a possible hate crime in Williamsburg, according to a law enforcement source.
Approximately 11 mezuzahs appear to have been intentionally burned outside of Jewish doorways.
Mezuzahs are pieces of Torah parchment, usually contained in some sort of decorative casing. They are affixed to the entryways of Jewish homes according to Jewish custom.
The burnt mezuzahs coincide with Holocaust Remembrance Day, which began Sunday at sundown.
The source did not know the extent of the damage. The residences are at the Taylor-Wythe Houses, a New York City Housing Authority complex in Brooklyn.
An NYPD spokesperson said the incident is being investigated as property damage at a residential location for now, and the determination of bias or hate crime will come at a later time.
Public Advocate Bill de Blasio condemned the burning and called on the public to go to the police with any information on the incident.
"Nothing but hatred can explained why someone would burn mezuzahs on Yom Hashoah, the day we remember the six million Jews killed during the Holocaust," De Blasio said. "This is a sickening act of prejudice that strikes at the very core of who we are as a city."
"Make no mistake: we will find those responsible," he added.
Follow Danielle Tcholakian on Twitter @danielleiat