Authorities in Wisconsin are searching for more than a dozen registered sex offenders who have tampered with or removed their GPS monitoring devices.

Of the 965 sex offenders on active supervision with the Wisconsin Department of Corrections who are mandated to be monitored, 13 cannot be located, according to an agency spokeswoman.

Brandon King, 31, one of 13 registered sex offenders in Wisconsin who can't be found after removing or tampering with their GPS monitors. Wisconsin Department of Corrections

Officials with the Wisconsin Department of Corrections released the information in response to an inquiry about Brandon King, 31, who was released from prison on Aug. 6 after serving time for incest with a child and forcing a child to watch sexual material and is among the unaccounted for offenders.

His sentence included extended supervision until 2028. A condition of his release requires that he wear an ankle bracelet.

Hours after his release, King cut off his GPS monitoring bracelet, the Washington County Sheriff’s Office said.

King was living at a transitional housing facility in Jackson at the time.