A billboard to honor a Chicago police officer who was slain in an active shooter attack in 2018 was recently defaced.

Officer Samuel Jimenez was shot and killed responding to an active shooter at Mercy Hospital and Medical Center in November 2018.

Within hours of discovering that someone had spray painted "PROPAGANDA" on the billboard honoring Jimenez, 45th Ward Alderman Jim Gardiner made sure to get the defaced billboard taken down, city leaders said. It has since been replaced, ABC7 reports.

Last month, the Chicago Police Memorial Foundation placed 66 billboards throughout the city of Chicago to honor the men and women who serve and protect this city.

In a statement, the Foundation said they were saddened to hear "several of the billboards" had been defaced.