Royal Caribbean International has made more adjustments ahead of Hurricane Irma.

Joining the Majesty and Enchantment of the Seas, the September 9 departure to Cuba for the Empress has also been cancelled, according to a statement.

In addition, “for guests on the current sailings of Oasis, Harmony and Allure of the Seas, we have decided to delay the return of these ships until the storm has passed. Due to the unpredictability of the storm, we plan to keep all of our guests currently sailing on these ships safely out of harm’s way,” the company said.

The Allure of the Seas Sept. 10 Western Caribbean cruise will now depart on September 13, and be a four-night sailing to Nassau.

The Harmony of the Seas, which had a Sept. 9 Eastern Caribbean cruise scheduled, will now sail a four-night cruise to Cozumel departing on September 12.

The Oasis is also seeing adjustments as a September 10 cruise is turning into a five-night itinerary departing on September 12 with calls in Costa Maya and Cozumel.