San Jose police say the accident happened at 1 a.m. The driver fled the scene.
Witnesses said there was nobody in the building at the time of the accident.
The building is being inspected to make sure it is safe.
There is no word if workers will be allowed to return to the building today.
Man currently inspecting inside the medical office building that was hit by SUV overnight. pic.twitter.com/0ZXacDQGsK— Tiffany Wilson (@TWilsonTV) April 21, 2017
SUV clipped one tree, ran over another before slamming into the side of a medical building at Regional Med Center in SJ overnight pic.twitter.com/HAP7UP7WPQ— Tiffany Wilson (@TWilsonTV) April 21, 2017