Violent protesters forced Donald Trump supporters to run a gauntlet of punches and abuse as they entered and left a private GOP fundraiser in Minneapolis Friday night.

Video posted to social media shows demonstrators, some masked, landing punches on an elderly man, picking the pocket of a teen, and verbally harassing an African-American attendee as he pushed his way through a shouting crowd to the doors of the Minneapolis Convention Center.

Other clips show protesters burning an American flag. One black-clad man leaped onto the windshield of an SUV in the Trump motorcade.

The Minnesota Immigrants Rights Action Committee organized the demonstration.

It was Trump’s first Minnesota visit since becoming the Republican presidential nominee, but he did not appear publicly or speak to reporters, according to the Minneapolis Star Tribune.