( CNN ) -- A Nebraska couple missing along with their children since last month surrendered to police and were taken into custody Monday , authorities said in a statement . The Schade family of Creighton , Nebraska , had last been seen on March 20 in Knox County . Matthew and Rowena Schade , along with their children , met with Knox County Sheriff Jim Janecek Monday about 10:50 a.m. according to the written statement from Janecek 's office . `` The family turned themselves over to law enforcement officers from the Knox County Sheriff 's Office and the Nebraska State Patrol , '' the statement said . `` Matthew Schade was arrested on an Antelope County warrant for violation of probation and Rowena is being held on a detainer from the Nebraska Department of Probation . '' A determination on the placement of the children , a daughter , 11 , and a son , 8 , will be made after interviews with child welfare workers from the state Department of Health and Human Services , the sheriff 's statement said . Both Matthew and Rowena Schade were on probation -- he in Antelope County , and she in Pierce County , officials in both counties told CNN . Antelope County Attorney Michael Long told CNN Matthew Schade was wanted for violation of probation and failure to report a change of address . The Schade family was last seen on March 20 in Knox County . Janecek said they disappeared after an officer went to their home on a domestic abuse complaint . Knox County is near the Nebraska-South Dakota border . Authorities in both states on Friday suspended a search for the family after a relative told authorities he had spoken with them and they were unharmed . Authorities thought they might be in Nebraska , after a brush truck they believed the couple stole from a South Dakota volunteer fire department was found abandoned in Antelope County on Friday . A brush truck is a type of small fire truck . Schade 's father , Chet Schade , contacted the Knox sheriff 's office on Thursday afternoon . He confirmed he had spoken with all four family members and said they were alive and well . Searchers had been searching for the family in South Dakota 's Black Hills until it was determined the couple possibly made their way back to Nebraska . Investigators thought the Schades might have gone camping on U.S. Forest Service property in the Black Hills . Schade had visited the area in the past , and law officers found the family 's Ford Taurus on Tuesday in Silver City , South Dakota .
Matthew and Rowena Schade , children , met with Knox County Sheriff Monday . Both parents were on probation in different counties . Placement of kids , 11 and 8 , will be made after child welfare interviews . Comment: