A CHP spokesperson said Saturday they are investigating initial reports that the vehicle flipped off of State Route 17 at about 9:40 p.m. Saturday and landed on the lanes of Interstate 280. 

The southbound lanes of Interstate 280 were completely blocked and shut down, as was the connecting ramp from Route 17 to Interstate 280 and the ramp connecting interstates 280 to 880. 

No additional information was immediately available about the collision or the people involved.