Prosecutors in Texas will not file charges against the adoptive parents of a three-year-old Russian boy who died in January.
Ector County District Attorney Bobby Bland cited a lack of evidence. Bland said young Max Shatto's death was likely a playground accident.
But Texas state Child Protective Services is continuing its own investigation into allegations of neglect by Max's parents.
Russia has pointed to the tragedy as what they call another case of a Russian child dying at the hands of American parents.
Russia has banned American families from adopting orphans in retaliation for U.S. sanctions on suspected Russian human rights abusers.
But only a tiny number of abuse cases has been reported among the tens of thousands of Russian children who have found homes in the United States.