The 125 meter long self-propelled tanker-barge Nancy collided head-on with a container barge on the Rhine River near Emmerich, Germany.  Both vessels bows were damaged above the waterline.   Two crewmen were injured, but did not medical assistance.   No reports of pollution being released.   Reports state there was dense fog at the time which had reduced visibility to just 200 meters.  Both vessels had radar and navigation equipment on board.  The water police is conducting an investigation into the incident.