Suspected Cause of Death Revealed for Father and Son Found Dead at Remote Michigan Campground: Reports

The suspected cause of death of two people found deceased in Isle Royale National Park, Michigan, earlier this month has reportedly been revealed.

PEOPLE previously reported that the bodies were located by park rangers in a remote area of the park on June 9 after receiving reports of two deceased people the previous day.

According to Michigan Live, ClickonDetroit, and WMNU, officials believe the individuals died in a murder-suicide.

Per Michigan Live, Keweenaw County Medical Examiner Dr. Michael McAllister stated that the deceased were a father and son, adding that the FBI was continuing the investigation. The outlet also noted that it is currently unclear whether the father or the son died first.

PEOPLE has contacted Keweenaw County Medical Examiner Dr. Michael McAllister and the FBI for comment, but did not immediately hear back.

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According to Michigan Live and ClickonDetroit, the identities of the two deceased are not being revealed at the time to prevent the investigation from being jeopardized.

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The National Park Service announced in a press release on June 12 that the two individuals had been identified and that there was no threat to the public.

Officials added, “Due to the remote location of the campground near Greenstone Ridge trail, a fixed-wing aircraft and a helicopter were used to assist with transportation for the investigation. This remains an ongoing investigation, and we have no further information to provide.”

A previous statement from the park service revealed that two rangers “hiked overnight 11 miles” to the location of the bodies after receiving two separate alerts about the remains on June 8.

According to the Associated Press, people are only able to access Isle Royale National Park by water transport. Vehicles are also not permitted in the park. “The approved modes of transportation include hiking, boating, canoeing, and kayaking,” per the park’s website.

According to the site, the weather on Isle Royale, which is open from April 16 to Oct. 31 each year, can be “inclement and unpredictable.”

“In the spring, visitors should expect to be completely self-sufficient, as services and emergency response are limited to non-existent,” the website states.

If you or someone you know is considering suicide, please contact the National Suicide Prevention Lifeline at 1-800-273-TALK (8255), text “STRENGTH” to the Crisis Text Line at 741-741 or go to suicidepreventionlifeline.org.