- The Costa Concordia capsized off the Italian island of Giglio on January 13 2012 after it struck rocks.
- Thirty-two people were killed in the disaster and two bodies are still missing.
- The reef sliced a 70-metre long gash into what is now the exposed side of the hull, letting seawater rush in.
- The salvage team will attempt to rotate the ship by 65 degrees so it can eventually be towed.
- The ship is the length of three football pitches and weighs 114,000 tonnes.
- The project has cost £500 million to date.
Everything is so far going smoothly. Operations have been underway for eight minutes and there is a pull of 2,000 tonnes now on the ship. This will increase by 200 tons a time.
Robotic cameras are monitoring the strain the pull is putting on the vessel to be sure it can take the strain.
This is most difficult part of the operation as they try and raise the ship off the rocks it's trapped on. Underwater cameras are guiding the work.
The parbuckling process to right the Costa Concordia is now underway off the island of Giglio, Italy.
The company behind capsized cruise ship Costa Concordia is just as responsible for the accident which killed at least 30 people, a survivor of the 2012 disaster has said.
Survivor John Rodford said former captain Francesco Schettino had "obviously done wrong" but felt the ship should not have been at sea in the first place.
Mr Rodford was on board with his wife celebrating his wedding anniversary when the cruise ship capsized in January last year.
Dozens of pulleys are wrapped around the Costa Concordia's hull and they will start to hoist the ship at around three metres and hour.
The most dangerous part will be right at the start as they begin to move the vessel off the rocks it is resting on.
As the lightning flashed and the wind picked up it was just the kind of night the salvage team of the Costa Concordia had dreaded.
Five hundred people are working around the clock to give this operation the best chance of success and the final preparations were all meant to be done in the dark of Sunday night.
The weather however has put paid to that.
Consequently the last minute work hasn’t been done and they’re desperately trying to catch up now.
Key to that work is the control barge – floating just off the wreck it’s linked to the robot cameras that will beam images back to those overseeing the project.
If those images don’t get back to the barge it’s impossible for them to continue so getting the barge up and running is now the priority.
After a year and a half of success and set back however the delays are not causing too much stress for those trying to right the Costa.
The Costa Concordia salvage attempt has been delayed by two hours.
It had been due to begin at 6.30am this morning.
Nick Sloane, head of the Costa Concordia salvage operation, tells me weather conditions are good and after a 30-minute delay the parbuckling process will start at 6.30am.
Efforts to find the bodies of an Italian woman and Indian man still missing on the Costa Concordia will not begin until the ship is upright and safe, officials said.