Video: Inside the wreckage of the Costa Concordia

A diver explores the corridors of the wrecked luxury cruise liner, which sank ff the coast of Isola del Giglio in Italy in 2012. Credit: Italian Carabinieri

Italian police have released footage from inside the sunken Costa Concordia cruise liner that sank off the coast of Isola del Giglio in January 2012 and has remained there ever since.

The footage was taken days before an historic attempt to refloat the 114,500-tonne vessel and tow it away from the Italian island.

Police divers explored the wreck of the £500 million luxury liner and filmed evidence of debris and dilapidation from the ship's two-and-a-half-years spent under water.

Police divers filmed inside the sunken Costa Concordia. Credit: Italian Carabinieri

However, many elements of the furnishings and interior decor from the high-end commercial vessel remain eerily well-preserved and personal items abandoned by desperate passengers were seen strewn around the wreckage.

What appears to be a reception point on the ship still shows a vase of flowers, computer and a picture hanging on the wall Credit: Italian Carabinieri

Salvage workers now face the challenge of refloating the 950-foot long vessel, which has already been raised from the rocky seabed in a complex and costly operation that took place last year.

They are expected to spend around five days towing it the 150 miles to Genoa, where it will be dismantled and made into scrap.

One of the staircases on the £500 million ship. Credit: Italian Carabinieri

The 2012 tragedy claimed 32 lives, while a salvage diver died while working on the wreckage in February this year.

Costa Concordia's captain Francesco Schettino is accused of causing the incident by showboating for onlookers on the island, who are used to ships doing a "sail past" as they near the coast.

The Costa Concordia sank after hitting rocks off the coast of Italy in 2012. Credit: Baris Seckin / AA / SCANPIX

He is accused of running the ship aground by performing the sail past too close to rocks, while he claims he was observing maps given to him by the ship's operator that did not display the rocks.

The case is still being heard at a court in Tuscany.

Watch: Footage from inside the ship moments before it sank: