More skeletal remains have been found at Lake Mead, the National Park Service (NPS)announced in a news releaseTuesday.NPS rangers responded to a report of the discovery of “human skeletal remains” in the Swim Beach area of Lake Mead National Recreation Area around 8 p.m. Monday, read the release.“Park rangers have set a perimeter to recover the remains with the support from Las Vegas Metropolitan Police Department’s dive team. The Clark County Medical Examiner has also been contacted,” NPS continued, adding: “The investigation is ongoing.“PEOPLE has reached out to the NPS and Las Vegas Metropolitan Police Department for comment, but did not immediately hear back.Monday’s finding marks the fifth discovery of remains in the area since Mayamid receding water levelsdue to the ongoing drought.On May 1, boaters found abarrelon an embankment in Hemenway Harbor containing the body of a homicide victim.“The cause of death was gunshot wound,” Clark County Coroner Melanie Rouse told PEOPLE.File: George Rose/GettyLas Vegas Metropolitan Police Department detectivesbelievethe victim was killed some time in the mid-1970s to early ’80s,based on the clothing and footwearthe victim was found with.A second set of remains was found at Lake Mead on May 7. In that incident, NPS rangers were called to Callville Bay in Lake Mead National Recreation Area around 2 p.m. on May 9 after two paddle boarders found the remains.“These remains have been determined to be male,” said Rouse. “And we have an estimated range from 28 to 38 years of age.“Want to keep up with the latest crime coverage? Sign up forPEOPLE’s free True Crime newsletterfor breaking crime news, ongoing trial coverage and details of intriguing unsolved cases.The third set of remains was found at Boulder Beach around 4:30 p.m. on July 25 and have not been identified.“It is not uncommon to have deaths that do come to us from recreational areas,” said Rouse. “So that is pretty common that we will respond to a recreation area throughout the year.“A fourth setwas found at Swim Beachon Aug. 6.In addition to the skeletal remains found at Lake Mead over the last few months, aWorld War II-era boatwas spotted halfway out of the water in July.

More skeletal remains have been found at Lake Mead, the National Park Service (NPS)announced in a news releaseTuesday.

NPS rangers responded to a report of the discovery of “human skeletal remains” in the Swim Beach area of Lake Mead National Recreation Area around 8 p.m. Monday, read the release.

“Park rangers have set a perimeter to recover the remains with the support from Las Vegas Metropolitan Police Department’s dive team. The Clark County Medical Examiner has also been contacted,” NPS continued, adding: “The investigation is ongoing.”

PEOPLE has reached out to the NPS and Las Vegas Metropolitan Police Department for comment, but did not immediately hear back.

Monday’s finding marks the fifth discovery of remains in the area since Mayamid receding water levelsdue to the ongoing drought.

On May 1, boaters found abarrelon an embankment in Hemenway Harbor containing the body of a homicide victim.

“The cause of death was gunshot wound,” Clark County Coroner Melanie Rouse told PEOPLE.

File: George Rose/Getty

BOULDER CITY, NV - JULY 12: The Lake Mead 2021 watermark, the country’s largest man-made water reservoir, formed by Hoover Dam on the Colorado River in the Southwestern United States, which has dropped 2 inches every day since February (26 feet in one year), is viewed as the lake is at approximately 25% capacity is viewed on July 12, 2022 near Boulder City, Nevada. The lake, a national recreation area, located within the states of Nevada and Arizona 24 miles east of the Las Vegas Strip, serves water to the states of Arizona, California, Utah, Colorado, and Nevada, as well as parts of Mexico, providing fresh water to nearly 20 million people and large swaths of farmland. (Photo by George Rose/Getty Images)

Las Vegas Metropolitan Police Department detectivesbelievethe victim was killed some time in the mid-1970s to early ’80s,based on the clothing and footwearthe victim was found with.

A second set of remains was found at Lake Mead on May 7. In that incident, NPS rangers were called to Callville Bay in Lake Mead National Recreation Area around 2 p.m. on May 9 after two paddle boarders found the remains.

“These remains have been determined to be male,” said Rouse. “And we have an estimated range from 28 to 38 years of age.”

Want to keep up with the latest crime coverage? Sign up forPEOPLE’s free True Crime newsletterfor breaking crime news, ongoing trial coverage and details of intriguing unsolved cases.

The third set of remains was found at Boulder Beach around 4:30 p.m. on July 25 and have not been identified.

“It is not uncommon to have deaths that do come to us from recreational areas,” said Rouse. “So that is pretty common that we will respond to a recreation area throughout the year.”

A fourth setwas found at Swim Beachon Aug. 6.

In addition to the skeletal remains found at Lake Mead over the last few months, aWorld War II-era boatwas spotted halfway out of the water in July.

source: people.com