Police in Hopkinton, Massachusetts, responded to reports of a swastika and the word "Jew" painted on a traffic safety sign.
Both signs on the same post were spray painted in orange paint.
A profane word was later discovered painted on a nearby driveway in similar paint. Authorities determined the word had been painted overnight.
Later on Thursday, another resident reported finding the number "666" written in red marker on a piece of paper under a rock on a nearby street.
At this point, authorities don't believe anyone has been individually targeted based on their religious beliefs.
Authorities contacted local synagogues and the AntiDefamation league.
Police Chief Ed Lee stated "The Hopkinton Police will have zero tolerance for this type of offensive behavior". Authorities are continuing to investigate all three reports.
Police are asking for any information that will help identify the people responsible for these acts and to please contact the Hopkinton Police Department at (508) 4973401 with any tips.