UPDATE: All lanes are open after a tractor trailer crash shut down I-75.
ORIGINAL STORY: A crash on I-75 southbound in Hamilton County has shut down the interstate.
The crash occurred at mile marker 1 southbound at the I-75/I-24 split.
The crash was reported at 6:23 and is expected to be cleared by 10 a.m.
Northbound traffic is unaffected.