Two of the people are in serious condition, the other three are critical. The injured include four women and one man, ranging in age from 30 to 80-plus.
According to investigators, the 24-year-old woman driving a Ford Explorer says she lost all power in the vehicle as she headed down San Bruno Avenue toward Arleta. She could not steer or brake. The SUV was virtually on its own.
It swerved, crossing the street and slammed into the crowd waiting in the shade of an apartment building next to the bus shelter. The SUV went on through a chain link fence smashing into a parked van which belongs to a 19-year-old who lives in the apartment building. Ralph Espinoza uses it to drive to work in Daly City. The vehicle's front end is smashed in and the engine will not turn over.
The driver was distraught, crying uncontrollably as officers and medics swarmed the scene.
No arrests have been made. Investigators say it may take weeks to determine what went wrong mechanically.
The street was reopened to traffic a little over two hours after the accident.