RedactedNarrative: After fueling the vessel the operator started to maneuver away from the dock when fumes in the bilge ignited causing a fire and burning 2 passengers.  All 4 passengers jumped overboard, fire was extinguished by a 3rd party.  The report from the law agency involved, did not include details about the “3rd party”.  We have no information on that.  Passengers were not wearing life jackets.  No damage estimates were provided.  No other injuries were reported.