The Indian Creek Massacre occurred on May 21, 1832 with the attack by a party of Native Americans on a group of United States settlers in LaSalle County, Illinois following a dispute about a settler-constructed dam that prevented fish from reaching a nearby Potawatomi village. The incident coincided with the Black Hawk War, but it was not a direct action of the Sauk leader Black Hawk and conflict with the United States. The removal of the dam was asked, was rejected by the settlers and between 40 and 80 Potawatomis and three Sauks attacked and killed fifteen settlers, including women and children.