According to the department, the boat, which is owned by a Missouri man, caught fire when the inboard engine exploded.
The three passengers on the boat, named “ForePlay” were picked up by a passing boat and were not injured.
The fire had self-extinguished by the time the fire department arrived. The boat was then towed to the Alton Marina. The department said that no fuel leaked into the river as a result of the incident.
The incident occurred the same day as the annual “Blessing of the Boats” ceremony near Portage Des Sioux, but it was unclear if the disabled boat had planned to attend.