F53, F15 (Hanover Twsp Fire Co) and EMS 17 (Bethlehem Twsp) were alerted for a MVA on Route 33 SB at MM 5.7 in Lower Nazareth Twsp. EMS 17 arrived on scene and confirmed 2 vehicle down the embankment with multiple injuries. Fire units from both companies arrived and assisted EMS with patient packaging, hazard control, and traffic control.