(Corrects first paragraph to say profit fell because of higher costs and cruise disruptions, not lower onboard spending. Onboard revenue yields rose.)
April 24 (Reuters) - Royal Caribbean Cruises Ltd, the world's second-largest cruise operator, reported a 65 percent fall in quarterly profit as costs rose and six cruises were shortened or canceled.
Net income fell to $26.5 million, or 12 cents per share, in the first quarter ended March 31, from $76.2 million, or 35 cents per share, a year earlier.
Revenue for the company, whose lines also include Celebrity Cruises and Azamara Club Cruises, fell 1 percent to $1.89 billion.
(Reporting by Devika Krishna Kumar and Siddharth Cavale in Bangalore; Editing by Maju Samuel)