MANASSAS, Va. (FOX 5 DC) -- An overturned tractor trailer on Prince William Parkway's eastbound lanes is causing backups in Manassas on Thursday.
Prince William County police are asking drivers use caution and follow the directions of police on the scene at the intersection with Clover Hill Road.
Along with the eastbound lanes, police are also seeing residual backup on the westbound lanes.
They're asking drivers to use caution and follow police directions.
There has been no word on whether anyone was injured, or what caused the crash.