Letter Threatening Joe Biden, Kamala Harris and Democrat Supporters Delivered To Maryland Home

An investigation has been launched after a letter threatening those planning to vote for Joe Biden and Kamala Harris was delivered to a house in Maryland.

The Secret Service has also been informed of the letter after the male sender allegedly described how he wanted to attack the Democratic presidential nominee and rape his running mate, as well as execute them both on air.

The letter was delivered to an address in Frederick on Sunday morning which had Biden-Harris signs in the yard, reported WBAL.

"The beginning of the letter makes some general threats about people supporting particular candidates," Frederick police Lt. Kirk Henneberry said.

According to reports, the letter warns: "If you are a Biden-Harris supporter, you will be targeted. We have a list of homes by your election signs. We will not comply or give anything up, especially our guns."

The letter also threatens to shoot and kill former Congresswoman Gabrielle Giffords, who survived a 2011 assassination attempt against her in Arizona which went on to leave six people dead. She has since gone on to launch the anti-gun violence group, Giffords.

"Our concern is we give that information to the authorities, the Secret Service, and make sure they have all the information they need to follow up and investigate," Henneberry said.

Police said the people at the home where the letter was delivered do not recognize the male suspect seen on their doorbell surveillance footage.

Frederick Police confirmed to Newsweek that there have been no other reports of similar incidents and no arrests have been made.

The letter was condemned by both Democrats and the GOP in Frederick.

"The entire Frederick County Democratic Central Committee condemns these threats of violence in the strongest possible terms and sends our heartfelt good wishes to the residents whose peace has been violated in such an unsettling manner," Deborah Carter, chairwoman of the Frederick County Democratic Central Committee, said in a statement.

"We call on everyone to respect others' private property rights and their First Amendment right to display their support for the candidate of their choice," added Steven Clark, chairman of the Frederick County Republican Central Committee.

Last week, voters in Maryland were reminded not to give their November election ballots to strangers following reports of people "going door-to-door" to illegally collect them.

The Anne Arundel County Board of Elections said they would never send people to people's homes and people should only hand over their ballot to their official designated agent if they require one.

"Should anyone come to you and tell you they would be glad to take your ballot to the nearest Official Drop Box please know they are not working for any local board of election offices," the statement said.

"Do not give a stranger your ballot to turn in for you."

A political poster favoring U.S. presidential candidate former Vice President Joe Biden and Senator Kamala Harris is placed on a front lawn September 11, in Scranton, Pennsylvania. A letter threatening those planning to vote for Joe Biden and Kamala Harris was delivered to a house in Maryland. Robert Nickelsberg/Getty