Four more people have been charged with participating in a criminal intimidation campaign against University of Michigan officials to try to force the school to cut financial ties to Israel, federal authorities said Friday.

The new indictment comes nearly five months after eight pro-Palestinian activists were charged with conspiracy for threats and vandalism at officials' homes, some businesses and the Jewish Federation of Detroit.

Investigators have highlighted several incidents over the past few years, including fake bloody corpses that were placed in a university board member's yard, and the 2024 spray-painting of anti-Israel messages at the home of Santa Ono, who was school president at the time.