( CNN ) -- Ghanaian authorities detained an American couple on suspicion of trying to adopt four children illegally in the African nation , U.S. officials said . Sol and Christine Moghadam from Irvine , California , traveled to Ghana with their two biological children to adopt four siblings there . They adopted the children on June 14 , but officials in the nation questioned the legality of their adoption , leading to their detention over the weekend , according to Victoria Nuland , a spokeswoman for the State Department . `` Ghana was concerned that some of the documents they had were n't filled out properly or were forged , '' said Hank Fortener , founder of AdoptTogether , an advocacy group that provides a platform for prospective parents to raise funds . The couple used the group 's website to raise funds . African adoption should be discouraged 'at all costs , ' group says . Though they are still in the nation , Ghanaian officials have since determined their documents are legitimate , according to Fortener . A bond has been posted for their release and they were reunited with their biological children Monday , Nuland said this week . `` We are emotionally exhausted and traumatized from the entire incident but we are thankful to have support and prayers from friends and family worldwide , '' the Moghadams said on their blog , Our adoption journey to Africa . `` Our case is not complete yet , but our chief officer from the Ghana police department has apologized for their overreaction and stated that our detainment was a mistake on their part. `` CNN 's repeated attempts to reach the couple and Ghanaian officials were unsuccessful . The Moghadams initially planned to adopt a child in Ethiopia in 2010 , but decided on Ghana after they saw the four siblings on the waiting list of an adoption agency . Africa has seen a surge of adoptions in the past eight years , according to adoption expert Peter Selman from Newcastle University in Britain . A new report from The African Child Policy Forum entitled `` Africa : The New Frontier for Intercountry Adoption '' says prospective adoptive parents are turning `` en masse '' to the continent as other countries toughen their laws . Most children adopted from Africa go to the United States or France , two of the world 's biggest receiving countries , Selman said . Stolen babies scandal haunts Spain .
Michael and Christine Moghadam are from Irvine , California . They traveled to Ghana with their two biological children to adopt four children . Ghanaian officials in the US questioned the legality of their actions . ` ` We are emotionally exhausted and traumatized from the entire ordeal , '' they said .