The Grand Rapids Police Department received reports on Monday of several headstones at the Ahavas Achim Cemetery being vandalized.

The graves were painted with pro-Trump slogans as the president made his final campaign rally of 2020 in Grand Rapids on Monday night.

The Grand Rapid Police Department said it was investigating but has not been able to recover any evidence from the scene and currently has no suspects.

“We are appalled by the reported desecration of gravestones at the Ahavas Israel Cemetery in Grand Rapids,” the Michigan Branch of the Anti-Defamation League said in a statement.

“We are in close touch with the Jewish community and Law Enforcement to investigate this vandalism.”

The Michigan Democratic Jewish Caucus said the “heinous act” was committed on the eve of the election in order “to send an intimidating message to the president’s opponents, and particularly, Jewish voters.”

Cary Fleischer, Grand Rapids regional chair of the Michigan Democratic Jewish Caucus, said: “This attack on our Jewish community in Grand Rapids speaks volumes about the choice confronting our country in [Tuesday’s] election.

“It is long past time to elect leaders who care about the communities they serve, who will defend the rule of law and stand up to hatred and violent extremism—not stoke its flames.”

The Michigan chapter of the Council on American-Islamic Relations (CAIR-MI) is also offering a $1,000 reward to anyone who provides information leading to an arrest and conviction.

“We call on federal law enforcement authorities to investigate the recent desecration of the Jewish cemetery as hate crime,” said CAIR-MI Executive Director Dawud Walid. “The sacred sites of people of faith must be protected from vandalism that is meant to spread fear and intimidation.”

The Grand Rapids Police Department has been contacted for comment.

Michigan is seen as one of the key swing states that could decide who wins this year’s election between Trump and Joe Biden.

According to a recent Research Co survey, Biden currently has an eight-point advantage over Trump in the polls (53 percent to 45 percent).

In 2016, Trump defeated Hilary Clinton by just 0.2 percent, the narrowest margin of victory in Michigan’s history and the narrowest overall in the 2016 election.

Trump’s win was the first election since 1988 in which Michigan did not vote for a Democrat.