On the final leg while running from Presque Ilse back to Kingston we came upon an OL that was billowing with smoke. We came off plane to assist with extinguishment, evacuation and to wave off fast approaching boats. Hot Boat got out the red safety flag I carry with me and waved off oncoming boats. As we approached we got the "OKAY" sign that no immenant danger was present and we assisted with the flag until the crew were safely underway to the side of the channel and out of the way of fast running poker runners. Does anyone have any info as to what actually happened to this boat?