It's still slow going right now.
This happened around 3:15am on northbound on the 41 strip near Highway 60.
Close to a dozen crews remain on the scene.
The E.P.A. is also there.
Officials say the driver has been taken to Methodist
The latest from the Kentucky Transportation Cabinet is that the truck was carrying an oil like substance and it flipped after hitting a guardrail.
In the last hour, the tanker had been towed away.
It's expected to be more than an hour before it's all clear.
Northbound lanes are still closed.