WOBURN (CBS) – Two pedestrians were struck by a septic truck near Woburn City Hall Tuesday night.

Woburn Police say the two victims, a 67-year-old woman and a 71-year-old man, suffered serious life-threatening injuries after they were struck on Common Street. Both victims are from Boston.

Officers believe the victims were crossing the street in the crosswalk and were trying to catch a bus in front of city hall.

The driver of the truck remained on scene following the accident, and was at times, visibly upset.

The incident is under investigation by Woburn Police and State Police.