MSC Cruises is suspending calls at Turkish ports until further notice because of “growing concerns” from guests.
The cruise line said the decision would be in place until further notice.
MSC Magnifica, which is based out of Venice from March 26, will call at Athens and Mykonos instead of Istanbul and Izmir.
It comes after Crystal Cruises also cancelled port calls in Turkey, citing “ongoing security concerns”.
A suspected IS suicide bomber killed 10 people in Istanbul earlier this month.