Royal Caribbean Latest Cruise Line to Cancel Turkey Ports of Call

"We truly regret having to take this action and thank you for your understanding and cooperation. Any decision we make is made in an abundance of caution and safety, as your clients experience in our ports of call is always our utmost priority," Royal Caribbean said in a statement.

Royal Caribbean will replace all calls in Ephesus, Kusadasi with alternate ports-of-call for the 2017 Europe season.

The ships affected include the Brilliance of the Seas which will now sail to Mykonos, Greece, Jewel of the Seas which will travel to Rhodes, Greece and Rhapsody of the Seas which will visit Kotor, Montenegro, Chania, Greece or Mykonos, Greece-- depending on the date.

The U.S. State Department continues to warn Americans of “increased terror threats from terrorist groups in Turkey” in the latest travel warning issued Jan., 25.

“Carefully consider the need to travel to Turkey at this time, and avoid travel to southeast Turkey due to the persistent threat of terrorism.  The Department of State has placed restrictions on official travel by U.S. government personnel to Istanbul and to certain areas in southeast Turkey,” the department said on Oct. 29.

The news may come as a disappointment for guests hoping to see Turkey's ancient wonders but customers who purchased a Royal Caribbean Shore Excursion for a day in Kusadasi will receive a full refund.