The Ottawa Police Department’s hate and bias crimes unit has begun an investigation into an act of vandalism discovered on Monday at the Canadian city’s National Holocaust Monument.

Red paint proclaimed “Feed Me” in tall, thin letters below the gray structure’s front sign before workers covered the graffiti with a black tarp. The message appeared to be a reference to the humanitarian situation in Gaza, where Israel has been waging a military campaign against the Palestinian terrorist group Hamas.

The vandals also dumped their paint in four other locations, two on either side of their message.