Norwegian Broadcasting reports that the cruise-ferry Stena Saga, which operates between Oslo and Fredrikshavn in Denmark, was hit by an explosion in its engine room over the Easter weekend.  The explosion sparked a fire. 

A newspaper in Norway reports that "alarmed residents south of Drøbak called emergency services when they saw smoke billowing from the ship and noted that it was off course in the sound leading into the inner Oslo Fjord."

A Stena Line spokesman confirmed that the explosion created a lot of smoke but claimed it was contained by the vessel’s sprinkling system in the engine room.  The vessel drifted for a brief period but was able to continue sailing towards Oslo, where it arrived around 30 minutes late.

1,392 passengers and a crew of 180 were on on board at the time of the explosion and fire, although no evacuation took place.

A cruise line spokesperson stated that the incident involved a "minor" explosion which caused "no major damage."  The vessel was cleared to sail back to Denmark Saturday night.

If you were on the ferry and have information, photos or video to share, please leave a comment below.