All 200 passengers have been evacuated from a Viking Line ropax that started taking on water and grounded off Finland on Sunday.
The Finnish company said the 34,400-gt Amorella (built 1998), which operates on the Turku to Stockholm route, "had ground contact" at Hjulgrund in the Aland archipelago around midday.
The situation was described as stable and no injuries were reported.
There are also 80 crew on board.
Finnish authorities sent vessels to move passengers to shore, an operation which took until 17:40 local time (1440 GMT) to be completed.
Investigation begins
"We are currently investigating the extent of the damage," Viking Line said in a statement.
Company chief executive Jan Hanses said water had leaked into one part of the vessel.
He blamed either technical or human error for the accident.
The Finnish Coast Guard said on Twitter that no oil leaks had been detected.
Finland’s Safety Investigation Authority has started an investigation.
"It’s a serious situation any time a passengership of this size runs aground. Abandoning the ship is a pretty radical action to take but in this case it’s probably justified," said Veli-Pekka Nurmi, the authority’s executive director, according to the Yle website.
Officials will now check all ship recordings and interview people in charge of navigation, Nurmi added.
The vessel has insurance through the North P&I.
It has no port state control detentions dating back to 1998.