Authorities are investigating a fatal fire in McLean.

The fire broke out Saturday at a home on the 1400 block of Brookhaven Drive. Firefighters from Fairfax County and Arlington County extinguished the blaze, but FCPD reported one fatality.

NBC 4 reported Saturday night that the deceased was an elderly woman and that an oxygen tank might have exploded during the fire.

UPDATE 1400 block of Brookhaven Drive in McLean: Fire investigators have confirmed one fatality. An autopsy will be performed to determine cause of death. The investigation is ongoing. pic.twitter.com/j2RsXKA4YT

— Fairfax Fire/Rescue (@ffxfirerescue) March 9, 2019

Thanks to our partners @ArlingtonVaFD for your assistance at the house fire in 1400 block of Brookhaven Drive in McLean. True professionals as always. Thanks also for photos in this and previous tweet. #Teamwork #FCFRD pic.twitter.com/eBwDS9Szgb

— Fairfax Fire/Rescue (@ffxfirerescue) March 9, 2019

Map via Google Maps