This is reported by the Department of Public Security of the US state of Minnesota on its Twitter page.

“The truck driver’s actions on the I-35W highway, provoking a crowd of peaceful demonstrators, are causing great concern. The truck driver was injured and taken to hospital with life-threatening injuries. He is detained. Apparently, none of the protesters was hit by a truck, ”the statement said.

Very disturbing actions by a truck driver on I-35W, inciting a crowd of peaceful demonstrators. The truck driver was injured & taken to a hospital with non-life threatening injuries. He is under arrest. It doesn't appear any protesters were hit by the truck. #MACCMN

- MnDPS_DPS (@MnDPS_DPS) May 31, 2020

It is clarified that experts are finding out how the truck ended up on a highway filled with demonstrators.

Earlier in Minneapolis, a truck driver nearly drove into a crowd of protesters involved in a protest over the death of African-American George Floyd.