Costa Cruises, the unit of Carnival Corp that owned and operated the capsized cruise liner Costa Concordia, has accepted a $1.31 million fine to settle potential criminal charges concerning last year's deadly accident off the coast of Italy, a company spokesman said on Wednesday.

Costa Cruises had been under investigation as the employer of the crew of the Concordia when it hit a rock off Tuscany in January last year, killing 32 people.

The prosecution is satisfied with the ruling by the preliminary court judge, Valeria Montesarchio, and will not appeal, prosecution sources said, adding that the fine was close to the maximum allowed by law.

The settlement means Costa will not face a criminal trial and ends its potential liability with the state of Italy, but not private lawsuits brought by passengers or crew, the prosecution sources said.

"This is a balanced decision," Costa Cruises lawyer Marco De Luca said after the ruling. "It is the most reasonable solution."

The company spokesman confirmed De Luca's comments, originally made to Italian media, and said the company had no further statement.

A criminal trial is expected to proceed for the individuals targeted by prosecutors.

Captain Francesco Schettino remains accused of manslaughter, causing a shipwreck and abandoning the ship, which was carrying more than 4,000 passengers and crew, and could face up to 20 years in jail.

Schettino steered the ship close to shore in a maneuver known as a "salute", striking a rock that tore a gash in its hull. The 290-metre-long (950 ft) Concordia came to rest on its side, half submerged, where it now rests awaiting salvage.

Five other members of the crew including Schetttino's first officer, and three members of a crisis unit set up by Costa to handle the accident, also face indictment and trial.

Costa Cruises will, as previously announced, seek damages for the loss of the vessel as a civil party in the criminal case when it begins, De Luca said.

(Writing by Steve Scherer; Editing by Greg Mahlich and Tom Pfeiffer)