CHICKASHA, Oklahoma - The Oklahoma Highway Patrol confirms one person has drowned at Lake Chickasha on Memorial Day. 

OHP officials said Zachary Tryon and two other men jumped into the water to rescue a young girl near the north dock. Two of the men pulled the child to safety, but Tryon drowned. 

According to officials, Tryon was was not wearing a life jacket. 

Stay with News 9 for updates.