The U.S. Attorney’s Office did not sign an arrest warrant for Rep. Cory Mills (R-Fla.) sent by the Metropolitan Police Department Friday over an alleged assault last week, according to multiple news reports.

Police in Washington, D.C., are investigating assault allegations against Republican U.S. Rep. Cory Mills of Florida, but an official says the case has been sent back for further investigation and might never result in charges.

Washington, D.C. police are investigating Rep. Cory Mills (R-FL) for an alleged assault that took place at a residence near the waterfront on Wednesday, and internal affairs are also reviewing the handling of the investigation.