According to a news release, as water levels in Lake Mead hit all-time lows amid a severe drought, additional human remains have been discovered – bringing the total to four since May.

The newest bone fragments were discovered at Swim Beach in Nevada on Saturday, and the Clark County Coroner’s office is examining them, according to the National Park Service.

The identification of the remains and the cause of death have not yet been established.

A body was discovered on May 1, another on May 7 and a third on July 26. The identities of all three remains have yet to be confirmed.

Todd Kolod, a man from Minnesota, said he believes the second set of remains belong to his father, according to reports.

According to the news, Daniel Kolod drowned in Callville Bay at age 22 while on a speed boat with a friend when he was 3 years old.

When the boat ran into a wave, both men were plunged overboard. The friend survived while Kolod’s father was never recovered.

According to the outlet, Kolod believes the skeleton is his father’s because it contains missing teeth and a partial denture – which his father used after losing his front teeth in an automobile accident.

The coroner aged the skeleton at between 23 and 28 years old, which provided another link to his father, when the remains were revealed on Wednesday.

Kolod stated that he would be thrilled to provide a DNA sample of his own in order to verify if his ideas are correct.

But, “The pace of being contacted about a DNA sample – I’m starting to lose hope a little bit,” Kolod said, according to the Mail.

“Maybe this new finding lights something up,” he said.

The Colorado River forms the border between Nevada and Arizona and was formed by the Hoover Dam’s construction in the 1930s at the Colorado River’s mouth. The body of water serves 25 million people, including Los Angeles, San Diego, Phoenix, Tucson, and Las Vegas.

However, the lake has receded to its lowest depths ever during a mega-drought in the western United States that has been exacerbated by climate change, leaving more than 170 feet less water since 1983.

Human remains have been discovered, as well as a sunken World War II vessel that has emerged from the shrinking lake.

The lake may hide bodies of individuals murdered by the mob, according to former Las Vegas Mayor Oscar Goodman — who claims that bodies of people slain by the mob may eventually be discovered in the water, which is only a 30-minute drive from The Strip.

“There’s no telling what we’ll find in Lake Mead,” Goodman – a lawyer who has repped mafiosos including Anthony “Tony the Ant” Spilotro – said. “It’s not a bad place to dump a body.”