Eyewitness News viewer Yvonne Bennett shot video of a mysterious object around midnight. She says it hovered for about a minute and then disappeared.
In Northern California, several other "UFOs" were spotted from Sacramento to Stockton and Auburn.
"We saw it right through the trees. It was bright enough to shine directly through the trees without any problem seeing it," said Steven Brown of Sacramento. "Whatever it was moved up and to the left. It hovered there for probably about 60 seconds, and then it took off at a high rate of speed."
So far, there's no word on exactly what it was that people saw all across the sky.