Three people were hospitalized Wednesday morning following a carbon monoxide leak at a Falls Church apartment building.
Fairfax County Fire and Rescue crews were called to Barcroft Plaza Apartments in the 3600 block of Malibu Circle around 2:15 a.m., where a resident inside showed signs of carbon monoxide poisoning.
Dangerous levels of carbon monoxide were detected inside the unit, News4's Derrick Ward reported.
A man and a woman were treated at the scene and then taken to Inova Fairfax Hospital. A man was taken to Arlington Hospital. All three suffered life-threatening injuries.
The building was evacuated, but residents were allowed to return to their homes about four hours later, after firefighters ventilated the structure and the carbon monoxide dropped to a safe level.
Gas officials say a faulty furnace caused the leak.
Stay with NBCWashington on-air and online for more on this developing story.
