Two Rivals in Michigan’s Crucial Senate Contest Say They Were Both Swatted

The two leading contenders for Michigan’s open Senate seat disclosed that they had been targeted in separate “swatting” incidents in a span of less than 24 hours, just days after winning primaries in a crucial contest that could determine which party controls the chamber.

The first incident, involving Representative Elissa Slotkin, a Democrat, happened on Thursday night at her home in Oakland County, north of Detroit. The second one occurred on Friday at an address that had been listed on public records under the name of Mike Rogers, the Republican candidate and former House member, in neighboring Livingston County.

Politicians on both sides of the political aisle have increasingly been the target of swatting in recent years. The hoaxes — when false threats are deliberately made to law enforcement to draw a heavily armed response to a person’s home — have added to a climate of intimidation and the harassment of public officials.

Ms. Slotkin was not home at the time of the incident, according to a spokeswoman for her office, Lynsey Mukomel, who said in a statement that Michigan State Police troopers went to the residence after a false threat was emailed to a local official. She did not elaborate on the nature of the false threat. Michigan State Police confirmed they responded.

“Michigan State Police checked the property and confirmed no one was in danger,” Ms. Mukomel said, adding that U.S. Capitol Police would investigate the incident.

Mr. Rogers, a former longtime House member who was endorsed by former President Donald J. Trump, experienced a similar incident around 12:30 p.m. Eastern time on Friday, said Chris Gustafson, a spokesman for his campaign.

A person reported that a man was holding a woman at gunpoint at the property in Livingston County connected with Mr. Rogers, according to Mr. Gustafson, who said that Mr. Rogers currently does not live there but that other members of his family do.

Shanon Banner, a Michigan State Police spokeswoman, said that a sergeant had responded to a report about a domestic situation at a residence in Livingston County on Friday and determined that it was false. She was not immediately able to confirm whether it was the same property.

Mr. Gustafson, in a statement, said that it was the second time that Mr. Rogers had been targeted in a swatting incident. The first was in 2013, when he was a member of Congress.

“This kind of violence cannot be tolerated, and it is our hope that those responsible will be quickly prosecuted and held accountable,” Mr. Gustafson said.

The rivals are running for a seat that is being vacated by Senator Debbie Stabenow, Michigan’s senior senator and a Democrat, who announced last year that she would not seek a fifth term. Democrats control the Senate by a thin 51-49 seat majority.