Officers from the Knoxville Police Department were called to a fight in progress in the 900 block of East Montgomery Street Tuesday afternoon.

Two brothers were discovered fighting. During the struggle one of them was seriously cut and transported by Mercy helicopter to Des Moines. The investigation is on-going and no arrests have been made. Mercy Hospital tells KNIA/KRLS News the injured man is in good and stable condition. KNIA/KRLS News will update with more information as soon as it becomes official.