Oh, what a great thing to happen during the auto show when thousands of people are in downtown Detroit! Crews are working to patch up this giant sinkhole outside the Renaissance Center, which is home to General Motors, among other things.

The sinkhole, 30 feet deep, is believed to have been caused by a water main break and was discovered Saturday night after a cab driver drove into it. The cab driver was rescued and there are no other injuries.

The Michigan Department of Transportation tells WXYZ that because of underground utilities and the sheer size of the hole, there's no telling how long it'll take to fix it up.

[Video via WXYZ]