Efforts underway to raise the Costa Concordia
The long-awaited attempt to pull the Costa Concordia cruise ship upright has begun off Italy's Tuscan coast.
A thunderstorm delayed the daring operation for about three hours this morning.
A system of pulleys and counterweights is being used to try to nudge the ship into an upright position so it can be towed away.
The operation known as parbuckling is often used to raise capsized vessels -- but it`s never been tried on a ship as large as the Concordia.
The cruise ship hit a reef in January 2012, killing 32 people.