ST. PAUL, Minn. (AP) – A Minneapolis police sergeant and SWAT officer – who was apparently angered by a loud cellphone conversation – was charged with assault for allegedly punching a man in the head, seriously injuring him.

Minneapolis police Sgt. David Clifford, the executive officer of the Minneapolis Police SWAT unit, was in the Anoka County Jail yesterday. He is charged with third-degree assault, and is scheduled to make his first court appearance today.

The victim was identified as Brian Keith Vanderlee, of Ramsey.  He is said to be on life support.

Minneapolis Star Tribune spokesman Steve Yaeger says Vanderlee is an account executive in advertising sales at the newspaper.