OPERATOR HAD TWO PASSENGERS ON BOARD PWC.  INJURED WAS THE REARMOST PASSENGER ON THE PWC. THE TUBE THAT WAS STOWED ON THE REAR OF THE PWC CAME LOOSE WHILE TRAVELING DOWN THE MAIN LAKE. INJURED'S ANKLE WAS CAUGHT BY THE ROPE AS THE TUBE WAS PULLED FROM THE PWC CAUSING REDNESS ADN SWELLING. INJURED HAD RETURNED HOME, AND WAS BROUGHT TO THE ER APPROXIMATELY FOUR HOURS LATER FOR MEDICAL ATTENTION. REPORTING OFFICER WAS NOT NOTIFIED OR ON THE SCENE AT THE TIME OF THE ACCIDENT.  USE OF ALCOHOL AND/OR DRUGS IS UNKNOWN. PFD'S WERE BEING WORN AND USED.
LONDON                        