Minnesota man charged with threatening to kill U.S. senator

A federal grand jury has indicted a Minnesota man accused of threatening to kill a U.S. senator.

Brendon Daugherty is being held in the Sherburne County Jail, in Elk River, Minn., on charges of threatening to murder a U.S. official and interstate transmission of a threat. He is to appear in court Tuesday. It is not clear if he has retained an attorney to speak on his behalf.

Court records do not identify the senator other than to say it's not a Minnesota senator who was threatened.