State-funded Operation Prairie Thunder saturation patrols jailed 75 people across Huron, Belle Fourche, and Yankton — 42 on drug charges and 33 on non-drug charges. Twenty-five people were interviewed on behalf of ICE, with 21 held for the federal agency. The patrols, part of Gov. Larry Rhoden's two-pronged initiative announced in July, generated concern in Huron's Hispanic community, with some residents believing ICE rather than state police conducted the operations.