A Guatemalan official says that 2,286 pending adoptions will be suspended for at least a month while officials review related paperwork.

Attorney General Baudilio Portillo says Monday’s decision was made after lawmakers asked his office to review adoptions on a case-by-case basis.

Adoptions council chief Elizabeth de Larios says additional DNA testing could be required to ensure some babies are in fact being given up by their birthmothers. The council was created in January to overhaul an adoptions system plagued by fraud and corruption.

Guatemala has been the second source of adoptive babies to U.S. parents after China. Prospective parents paid notaries as much as US$30,000 (euro19,400) to handle the process from start to finish.