Rep. Ilhan Omar was attacked while speaking at a Minneapolis town hall, with police identifying the suspect as Anthony Kazmierczak. (Minneapolis PD)
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.
This is a developing story. Please check back for updates.
Fox News' Jessica Sonkin and Alexandra Koch contributed to this report.
Greg Norman is a reporter at Fox News Digital.
https://www.foxnews.com/politics/federal-prosecutors-charge-man-accused-spraying-rep-ilhan-omar-town-hall