Costa Concordia set upright

Engineers in Italy have succeeded in setting the cruise ship Costa Concordia upright, 20 months after it ran aground off the island of Giglio.

They said that the unprecedented salvage effort "reached degree zero [vertical], which was our target".

In the operation that took all of Monday and most of the night, they used cables and metal boxes filled with water to roll the ship onto a platform.

The Costa Concordia capsized in January 2012, killing 32 people.

The bodies of two of the victims of the disaster, by the island of Giglio, have never been found. There are hopes that they may be located during the operation.

The ship was declared completely upright shortly after 04:00 local time (02:00 GMT) on Tuesday.

Franco Gabrielli, the head of Italy's Civil Protection Authority, said the vessel was now sitting on a platform built on the sea bed.

"A perfect operation, I must say," said Franco Porcellacchia, leader of the technical team for Costa Cruise, the owner of the ship.

He added that no environmental spill was detected so far.

As daylight broke, the now-upright, brown hulk of the ship was visible - its hull muddy and crushed from 20 months spent submerged on its side.

Booms and nets were put in place before the operation started - to combat any pollution threat in what is a marine national park.

The 114,000-gross tonnage ship - twice as heavy as the Titanic - was on Monday raised from rocks on which it had been lying and roll up onto her keel.

More than 50 enormous chains and winches were used to break the ship away from the reef - the process known as parbuckling.