The 107 meter long, 5916 dwt freighter Norvind went aground at the entrance to Kragerø, Norway.  The freighter had run aground into the shallows due to a navigation error.  The Norvind was able to refloat itself without assistance and docked later the same day.  No reports of injuries, damage or pollution being released.  Authorities are conducting an investigation into the incident.  Initial reports state that the master and chief mate were tested for alcohol and the results were negative.  The Norvind has had two prior incidents in 2011.