Potential human remains, including a jaw with teeth still attached, have been recovered from the largest reservoir in the US, officials said, as an ongoing drought causes water levels to drop across western states.
The US National Park Service said it received reports of apparent skeletal remains at Boulder Beach on Lake Mead, Nevada, on 16 August.
“National Park Service rangers and the Las Vegas Metropolitan Police Department responded to the scene,” the service said in a statement seen by the BBC’s US partner CBS.
The service added that the incident “remains under investigation, and no additional information is available at this time”.