Two cruise lines on Saturday said they were diverting ships to the hurricane-ravaged island of St. Thomas to drop relief supplies and evacuate stranded travelers.

Norwegian Cruise Line said it was sending the 2,004-passenger Norwegian Sky to the island with the goal of retrieving as many as 2,000 vacationers who were unable to leave before Hurricane Irma hit on Wednesday. The ship currently is off the coast of Mexico and should arrive in St. Thomas by late Monday.

Royal Caribbean said it was redirecting its 2,350-passenger Majesty of the Seas to the island to similarly evacuate several thousand travelers and also to drop water, food, ice and other provisions that are needed. The ship is off the west coast of Cuba and expected to arrive in St. Thomas on Tuesday.

The two ships are based in Miami and Port Canaveral, Fla., respectively, and currently are sailing without passengers. The lines previously had canceled their weekend sailings due to the approach of Irma and sent the ships toward Mexico to seek shelter from the storm.

Royal Caribbean also plans to redirect its 3,114-passenger Adventure of the Seas to the hard-hit island of St. Martin on Sunday for an unscheduled stop to drop relief supplies. The vessel is departing San Juan, Puerto Rico late Saturday on a previously scheduled cruise to the Southern Caribbean and is loading on provisions that are needed for a mounting relief effort.