Graffiti that said “kill your local Trump supporter” was found Sunday spray-painted in white letters on the School of the Museum of Fine Arts in Boston, the Boston Herald reported.

In response to the discovery, Boston Police Commissioner Bill Evans called the graffiti “troubling.”

“In a college area, it’s probably a college kid that somehow thinks that’s a proper thing to write at this time, but it shouldn’t make people afraid to come out to vote tomorrow,” Evans said to CBS Boston. “We have a few people in our department who are very good at reading graffiti and finding out who’s responsible.”

Evans said there would be a full police presence on Election Day so people would not have to worry about their safety while exercising their constitutional right.

“We always have officers at the polling places, and they’ll be working with the personnel at the polling places to make sure things are very orderly,” he said. “Obviously, we know it’s heated, and we’ll do our best to keep the peace.”

Crews painted over the graffiti early Sunday, according to the Herald.

Violence against Trump supporters has heated up as the election draws closer.

Gunshots destroyed a Trump sign Saturday in North Carolina and anti-Trump graffiti was spray-painted Friday on a Trump campaign office in Denver.