MIAMI (AP) - A revised lawsuit has been filed in Miami adding more plaintiffs and claims that seek more than half a billion dollars in damages in last month's Italian cruise ship disaster.

Attorneys said Monday the lawsuit now names 39 individual plaintiffs who were aboard the Costa Concordia when it capsized off the Tuscany coast. At least 17 people died and 15 remain missing.

The lawsuit names Miami-based Carnival Cruise Lines Inc. and its Costa subsidiary. The new version seeks $520 million in damages.

Many legal experts say it will be difficult to win lawsuits in Florida because Costa's tickets require that they be filed in Italy. Passenger lawyers contend Florida is proper because Carnival Corp. is based there.

Other attorneys have announced plans to file lawsuits for passengers in Florida.