During a town hall gathering on Tuesday, Rep. Ilhan Omar, D-Minn., was allegedly assaulted by a man who reportedly sprayed her with a liquid suspected to be apple cider vinegar.

The suspect, identified as 55-year-old Anthony James Kazmierczak, was caught on video as he approached Omar and sprayed an unidentified substance onto her clothing.

Just before the incident, Omar had been advocating for the resignation or impeachment of Homeland Security Secretary Kristi Noem, following several fatal shootings by federal immigration officers in Minneapolis.

As the event unfolded in Minneapolis, those present noted the strong smell of the liquid. A hazmat team later confirmed that the substance was apple cider vinegar, as detailed in a report by Alpha News.

Witnesses could be heard commenting on the foul odor of the substance, which was later identified by a hazmat team as apple cider vinegar, Alpha News reported.

Omar’s office issued a statement after the attack, noting the substance was sprayed with a syringe.

A man is tackled after spraying a substance at Rep. Ilhan Omar during a town hall she was hosting, Tuesday, in Minneapolis. (Octavio Jones/AFP via Getty Images)

“Unacceptable. Violence and intimidation have no place in Minneapolis,” Minneapolis Mayor Jacob Frey wrote in a statement. “We can disagree without putting people at risk. I’m relieved Rep. Ilhan Omar is okay and appreciate MPD for responding quickly. This kind of behavior will not be tolerated in our city.”

Kazmierczak, who was previously convicted of two DUIs, is charged with third-degree assault and was booked into the Hennepin County Jail.

Omar continued with her speech after the attack. (Alex Wong/Getty Images)

The Minneapolis Police Department confirmed to Fox News Digital that the FBI is leading the investigation.

The FBI and Omar’s office did not immediately respond to Fox News Digital’s requests for comment.