Update: Sewalson has been taken into custody.
The U.S. Marshals Service Northern Iowa Fugitive Task Force is seeking the public's assistance in locating the following person:
* Brandon Sewalson, 35. Sewalson is 5 feet 8 inches tall and 130 pounds. He is wanted by the Woodbury County Sheriff's Office for violating his probation. He is on probation for aggravated assault.
Sewalson has a triangle with the number 2 tattooed on his left hand.
Anyone with information can call the Northern Iowa Fugitive Task Force at 712-252-0211, email firstname.lastname@example.org or text the keyword TEN99 and the tip to tip411 (847411).