UPDATE (11:55 a.m.) The roadway has been reopened.
Ga. 400's southbound lane is closed just before Exit 12 due to an overturned tractor trailer carrying scrap metal, according to the Forsyth County Sheriff's Office
Traffic is being diverted to Exit 13, and it is unclear how long the roadway will be closed.
The FCSO is asking all drivers to avoid the area.