LORTON, Va. (WUSA) -- Fairfax County police and fire officials say that at approximately 7:57 a.m. Wednesday they received reports of smoke in the hallway at Halley Elementary School in Lorton.
The school was evacuated as a precaution.
Arriving firefighters found what's described as "a light haze" in a classroom, but no flames. Fire officials say a motor in an air handler went out, causing a haze.
Firefighters are ventilating the school and will let students back in the building as soon as the air is clear.
No one was injured during the incident.