Authorities initially classified their deaths as “natural,” but few details have been released in the case involving the duplex at 911 Sherman St.

Officers were dispatched to the home around 8:10 a.m. and found the bodies of a 31-year-old female and a 29-year-old male, both Marquette residents, a press release from the police department states.

However, the department’s police log from Monday cited the reason for dispatch to the 900 block of Sherman Street was due to “natural death.” Police explained this classification is used when the cause of death is unknown upon arrival to the scene.

Police said there is no danger to the public, but would not disclose any other details surrounding the incident.

Marquette police were assisted by UP Health System EMS, the Marquette City Fire Department, Michigan State Police Crime Lab and Northern Michigan University Police Department.

The cause of the deaths are still under investigation at this time.