First responders were called to a stretch of the northbound lanes of I-95 just past VA-630 (Courthouse Road/Exit 140) that blocked two right lanes with only the left lane getting by.
As of 5 p.m. on Friday afternoon, delays were reportedly at more than two miles.
The cause of the crash remains under investigation.
This is a developing story. Check Daily Voice for updates.
Want breaking news in the DMV as it happens, or want to contribute? Join the DMV All Incidents Facebook group.
Click here to follow Daily Voice Loudoun and receive free news updates.
ncG1vNJzZmickZ65usLOopqeZpOkunDCyKueoqaZlnytu9Sdpq6mX6m%2Foq%2FTqKlmrKKWtq2x0Waaq5mjnXqtscCdqmasn2J%2FdnnMoqOeZZSauaLF0mamp2WZYoZ2ecinZK%2Bhopy2r7XAaA%3D%3D