Danish owner DFDS has said there was no fire on board a ro-pax that broke down in the Baltic Sea.
Reports had spoken of a blaze or explosion in the engine room of the 25,700-gt Regina Seaways (built 2010) while it was en route from Kiel, Germany, to Lithuania's Klaipeda on Tuesday.
But the company said there had only been technical problems.
The breakdown caused smoke which triggered the ship's extinguishing system in the engine room, it added.
Passengers and crew were safe and engines were restarted, with the ship reaching Klaipeda on Tuesday night.
The ship had 294 passengers, 41 crew and trucks and cars on board.
No heat development was detected in the engine room, the company said.
