RENO, Nev. – A medical plane carrying five people crashed Friday night in western Nevada, killing everyone onboard.

The Lyon County Sheriff’s office said authorities began receiving calls about a possible plane crash near Stagecoach, Nevada, around 9:15 p.m. Friday.

According to the air ambulance company Care Flight, the airplane went off radar around 9:45 p.m.

The Central Lyon County Fire Department responded and search and rescue teams located the airplane around 11:15 p.m. They confirmed there were no survivors.

“We are heartbroken to report that we have now received confirmation from Central Lyon County Fire Department that none of the five people on board survived,” Care Flight said on its website.

A patient, their family member, and a flight nurse, flight paramedic and pilot had been onboard, according to Care Flight.

Stagecoach is located southeast of Reno, Nevada.

Authorities were still working to determine the cause of the crash Saturday morning.

Authorities investigate the site of a Care Flight plane that crashed near Stagecoach on Feb. 25, 2023. Five people were killed in the crash.

How do medical planes work?

More than half a million medical patients use “air ambulance” services each month in the U.S., the National Association of Insurance Commissioners says on its website.

Both helicopters and fixed-wing aircraft, or airplanes, are used by health care providers to transport patients in life-threatening situations.

Medical planes and helicopters can get patients to hospitals faster than traditional ambulances. But aircraft, especially helicopters, are more susceptible to bad weather compared to on-the-ground vehicles, according to providers at Mercy St. Vincent Medical Center in Toledo, Ohio.

Last year, University of Chicago researchers found medical airplane and helicopter providers are less likely to successfully intubate patients compared to on-the-ground ambulances.