Minneapolis Police Chief Brian O'Hara resigns after internal probe

Local News Minneapolis Police Chief Brian O'Hara resigns after internal probe into his conduct, mayor says By Cole Premo Cole Premo Digital Manager Cole Premo is digital manager for CBS Minnesota. For more than a decade, he's been covering breaking news and weather, daily topics, stories from the Native community and more in Minnesota. Read Full Bio Cole Premo Updated on: May 26, 2026 / 9:34 PM EDT / CBS Minnesota Add CBS News on Google Minneapolis Police Chief Brian O'Hara has resigned following an internal investigation into his conduct, the mayor announced Tuesday evening. In a press conference, Mayor Jacob Frey said Assistant Police Chief Katie Blackwell is the acting police chief effective immediately. In a written reprimand to the police chief, Frey said an investigation into O'Hara's behavior found he interfered with a prior investigation that included allegations he had "engaged in sexual intimate relationships" with city employees. Frey said the investigation substantiated that O'Hara "knowingly and intentionally" deleted a contact card for a city employee from his city-issued cell phone during the original investigation, "in an attempt to shield that evidence" of his connection to the employee from investigators. "Although the investigators have concluded that the underlying allegations from the original investigation remain not substantiated, your interference with the investigation risked the integrity of the investigation and constitutes a significant breach of trust," Frey's reprimand to the chief said. Earlier this month, O'Hara was re-nominated as police chief by Frey, with the mayor saying, "he's the right leader for this moment."Watch live on CBS News Minnesota. We will update this story.  More from CBS News NYC Mayor Zohran Mamdani announces plan for 400,000 affordable housing units