Only statement at this time from BGP :

Multiple sources reported a fire on the roof of the Corvette Assembly Plant.
We reached out to the Corvette plant’s Rachel Bagshaw who provided us with an official statement.
Here is the latest as of 5:00 pm ET on Dec. 11th in which they confirm the plant will be shut down for at least the week of Dec 13:

We can confirm that the fire that took place as a result of the tornado activity at Bowling Green Assembly plant early Saturday morning (December 11) has caused damage to the facility, including the roof and an employee entrance.

Maintaining a safe work environment for plant employees is our top priority.
Therefore, we are cancelling production on first and second shift the week of December 13 as our trained teams work to get tooling, equipment, and the facility space up to standard.

Customers remain at the center of everything we do. The high quality standards that our customers have come to expect of their vehicles continues to be our focus as we manage this event.

Statement by the UAW :