TUCSON, AZ (Tucson News Now) - The driver of a Sun Van vehicle is under investigation tonight.
A Sun Tran spokesperson said one of its drivers is suspended.
A passenger reportedly called the company, concerned about the driver. A Sun Tran supervisor was called out to the scene, as was Tucson Police.
The driver was not arrested but is now being tested for drugs or alcohol.
We will follow up when those results come back.