Congresswoman Ilhan Omar was sprayed with an unidentified substance by a man with a syringe on Tuesday as she gave her first in-person town hall of the year in Minneapolis, during which she called for ICE to be abolished “for good” and DHS secretary Kristi Noem to resign.

Omar had only been speaking for a few minutes when a man in the audience got up and began to shout, while spraying her with the liquid. People at the meeting said the liquid had an acidic smell.

Omar walked toward the man after the alleged assault, but he was then swiftly tackled to the ground by a security guard. People inside the North Minneapolis community center gasped as the scene unfolded.

Some, such as Minneapolis council member LaTrisha Vetaw, pleaded with Omar to end the town hall early to get checked, due to concerns for her safety because of the unidentified liquid . Omar refused to stop. “Ten minutes, I beg you … please don’t let them have the show,” she told the security team.