RedactedNarrative: V1 (PWC) was traveling south in Sarasota Bay near the Ringling bridge, V2 (Monark) was traveling south in the same area.  V1 was traveling at approximately 40 mph and impacted the stern of V2 on the port side, it then ramped over V1, impacting all three passengers before landing back in the water.  The operator and passengers of V2 were ejected and injured during the impact.  V2 occupants were able to swim back to the vessel, another PWC then towed them to shore were they were met by EMS and Sarasota PD.  All four subjects were transported to Sarasota Memorial Hospital, two with serious injuries.  ; Operator1 Admitted to hospital with complaints of abdominal pain and right shoulder injuries.; V2 injured 1:Fractured radius and ribs.; Operator2:Fracture humerus.; V2 injured2:Back injuries from being struck by PWC as it ramped over the vessel.  Laceration to hand from bracing on the helm