( CNN ) -- A Russian boy who was sent back to Moscow , Russia , by his adoptive mother in the United States has been returned to an orphanage , an attorney of the World Association for Children and Parents said Friday . Larry Crain said the National Council for Adoption will be traveling to Russia next week to meet with adoption authorities there . The delegation will evaluate the child , 8-year-old Artyem Saveliev , and provide information to a U.S. circuit court in Tennessee . World Association for Children and Parents had coordinated the adoption . In April , Artyem , then 7 , was put on a trans-Atlantic flight from the United States to Moscow . He had been adopted by an American family in Tennessee , which arranged for a Russian driver to deliver the boy from the Moscow airport to the Russian Ministry of Education . Artyem carried with him a letter signed by his adoptive mother , Torry Hansen of Shelbyville , Tennessee . In it , she said the boy was `` mentally unstable '' with violent tendencies , and that she had been misled about his mental condition . `` I am sorry to say that for the safety of my family , friends and myself , I no longer wish to parent this child , '' the letter read . `` As he is a Russian national , I am returning him to your guardianship and would like the adoption ( annulled ) . '' Artyem is a U.S. citizen by virtue of an international adoption treaty , Crain said . Hansen 's parental rights have not been severed , and she still is legally responsible for the boy . Crain said that a local teacher has petitioned to serve as Artyem 's guardian , meaning she would serve as a representative for him in court . According to the Shelbyville Times-Gazette , the court will rule on whether a petition filed by the adoption agency to be appointed as a temporary guardian for Artyem will be moved to juvenile court . A motion by the agency last week asks the court to transfer the matter to juvenile court `` for all further proceedings herein , '' the newspaper reported . An August 12 hearing in the case had been scheduled , but has been postponed . The case sparked an international uproar and led to a series of meetings between U.S. and Russian negotiators over a proposed agreement on international adoptions between their two countries . The proposed agreement calls for a reduction in the number of U.S. adoption agencies accredited to operate in Russia , . Moscow 's children 's rights commissioner , Pavel Astakhov , has said . `` Independent adoptions '' will be abolished , and there will be a new Russian-American agency that will inspect any U.S. family adopting a Russian child , he said . A senior State Department official has indicated that a possible provision of the new agreement would allow earlier and more frequent sharing of information both before and after adoptions . He said some American couples do n't see details of a child 's medical and psychological condition until a court appearance for final adoption approval . CNN 's Janet DiGiacomo contributed to this report .
NEW : August 12 U.S. hearing in case postponed . A boy adopted by a Tennessee family is back in a Russian orphanage . The boy's mother and father are suing the adoptive parents for child support, custody of their son, medical expenses, etc. A U.S. court hearing on guardianship is scheduled in the case next month .