A fire has been extinguished on a Grimaldi Group ropax off Italy.

The blaze on the 37,000-gt Cruise Bonaria (built 2001) is thought to have originated in a semi-trailer, local media said, citing initial findings from an investigation.

The ship was arriving in Olbia from Livorno with 153 passengers on Thursday when the incident occurred.

Footage showed smoke billowing from the vessel just off the coast, but no injuries were reported.

After the blaze was brought under control, the ship was towed into the port.

Passengers and vehicles were disembarked, but the fire had spread to four trucks and eight trailers.

Grimaldi has been contacted for further information.

Moby involved in towing operation

The ferry was towed by a Moby group tug.

"The tug division of Moby is pleased to have contributed to the rescue of the Cruise Bonaria of the Grimaldi company on which a fire had developed when entering the port of Olbia," Moby said.

"Moby congratulates the staff...for the great professionalism shown and for the prompt intervention that allowed to secure passengers and ship without further risks."

Last year, the European Union said it was providing €12m ($13.3m) of funding for a project to find a solution to the continuing problem of fires on ro-ro vessels.

Under the Legislative Assessment for Safety Hazards of Fire and Innovations in Ro-ro ship Environment project – known as LASH FIRE – the EU said it hoped to find innovative technologies to tackle the serious safety issue.

In December 2014 at least 20 crew and passengers died in a fire on the 26,904-gt ropax Norman Atlantic (built 2009) in the Adriatic in what was the worst of a series of fires on ro-ro vessels in European waters in recent years.

An unknown number of stowaways are understood to have died in the fire.

Fires have also been a concern on car carriers in recent months.