SKY7 was over the intersection of Rohnert Park Expressway and Commerce Blvd.
The Department of Public Safety tells us that Sonoma County Transit bus was stopped at an intersection when the white pick-up utility truck veered right into it.
Of the nine hurt, three were taken to the hospital.
The driver of the pick-up suffered major injuries.
The bus driver was also hurt.
The intersection was closed for a couple of hours around lunchtime for the investigation.
If you're on the ABC7 News app, click here to watch live