Couple missing from Carnival cruise ship - May 9th, 2013 - International

— Authorities are searching off Australia's east coast for two passengers on a Carnival cruise ship who were believed to have fallen overboard overnight.

The couple, Australian citizens from New South Wales state, were discovered missing this morning after the Carnival Spirit docked in Sydney port at the end of a 10-day journey.

Carnival has been plagued by a series of high-profile problems in recent years, including the deaths of 32 people when the Costa Concordia ran aground off the Italian coast last year.