Shots were fired into Vice President Kamala Harris‘ campaign office in Tempe, Arizona, cops said Tuesday.

Staffers at the Democratic Party-coordinated campaign office on Monday called Tempe Police to report finding what appeared to be bullet holes through the office’s front windows.

It was the second such shooting in as many weeks, police said, after the front windows were shot with either a BB gun or a pellet gun just after midnight on September 16.

‘No one was inside the office during the overnight hours, but this raises concerns about the safety of those who work in that building, as well as those nearby,’ Public Information Officer Sgt. Ryan Cook said.

Officers are now investigating every possible motive for the shooting, and are working to analyze the evidence collected thus far, the Tempe Police Department said.

Police in Arizona announced on Tuesday that a Kamala Harris campaign office was shot up

The department is investigating the shooting as a property crime because nobody was inside the building at the time.

But police are also implementing additional measures to ensure the safety of the Democrat workers and those in the nearby area, as footage from local news stations showed two bullet holes in a door and two more in windows to the office.

It is one of just 18 field offices for the Harris campaign in Arizona, and is shared by staffers for local Senate and House campaigns, NBC News reports.

‘We are grateful to Tempe Police for coming quickly to the scene, and are fortunate no one was present or injured,’ said Sean McEnerney, Arizona Democratic Party’s coordinated campaign manager.

Democratic Congressman Greg Stanton also expressed ‘a debt of gratitude for each and every campaign staff member, volunteer and canvasser who works out of this critical campaign office.

‘It’s unnerving, but with just 42 days until the end of this election, it won’t stop the important work from getting done,’ he posted to X.

Staffers reported finding what appeared to be gunshots through the front windows of the campaign office

Tempe Police are working to analyze the evidence collected thus far and are investigating every possible motive for the attack

The shooting comes just days before the vice president is expected to make a campaign stop in the swing state.

She will be returning to Arizona on Friday, in her first trip to the state since she held a packed rally in Glendale on August 9, when she laid out her plan to increase border security and create a pathway to citizenship for undocumented immigrants.

Harris is now said to be considering making a stop at the southern border at her visit on Friday, two people familiar with her schedule told NBC News.