An Ontario Chabad location was vandalized for the second time in less than two weeks, with antisemitic graffiti discovered on Monday, according to Chabad of Guelph and the Guelph Police Service.

The vandals wrote the message “Zionist dogs…stop killing children…the goyim know” on the window of the temporary Chabad center.

The location currently hosts Shabbos morning services and several weekday classes while a permanent Chabad center is under construction. The site was previously targeted on May 30 in another vandalism incident.

During the earlier attack, graffiti reading “Death to genocidal Israhell,” was found written across the window.

Guelph Police said Wednesday that they were investigating both incidents, though officials had not yet confirmed whether they were connected.

Rabbi Raphi Steiner said he was shocked after discovering the first attack and was especially disturbed that his son was exposed to the hateful message.

“It was heartbreaking to watch my 12-year-old son sit in shul constantly glancing up at the very visible graffiti, wondering why someone would do that to his shul,” Rabbi Steiner told the Jerusalem Post on Thursday.

The rabbi warned that antisemitism has increased in the area in recent months, with Jews becoming the most targeted group for hate crimes in Canada since the October 7 Massacre, despite making up only around 1% of the population.