The latest set of remains may not share the same circumstances, with other scenarios such as drowning possible, police say.
“At this point, we don’t believe foul play is involved,” Las Vegas Metropolitan Police Homicide Lt. Ray Spencer told CNN’s Victor Blackwell on Monday of the latest remains, adding that investigators preliminarily believe they are those of an adult.
And with more of the reservoir receding, “there’s always the possibility that more human remains could be uncovered,” Spencer said.
The Clark County Medical Examiner is assisting with determining the cause of death, according to the National Park Service, which said there is “no further information is available at this time.”
Levels continue to drop
As of Monday, Lake Mead’s water level was around 1,052 feet above sea level — roughly 162 feet below its 2000 level, when it was last considered full. It’s the lowest level on record for the reservoir since it was filled in the 1930s.
Upstream at Lake Powell, federal officials announced unprecedented, emergency steps last week to keep more water in that reservoir — and preserve the Glen Canyon Dam’s ability to generate hydropower — rather than sending it downstream to Lake Mead.
“We have never taken this step before, but the potential risk on the horizon demands prompt action,” Department of the Interior Assistant Secretary for Water and Science Tanya Trujillo told reporters last week. “We need to work together to stabilize the reservoir before we face a larger crisis.”
CNN’s Rachel Ramirez, Michelle Watson and Vanessa Price contributed to this report.
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