Accident scene cleared, according to authorities.
Traffic backed up about three miles. Both lanes now open.
An accident this afternoon led to two lanes on Interstate 81 getting shut down.
The wreck is near Abingdon by MileMarker 18. Virginia Department of Transportation reports that one lane is currently been closed. After the accident first occurred around 1 p.m., both lanes had been shut down.
A major traffic backup has occurred. More details are developing.