"We should seriously consider the lessons to be learnt and, if necessary, re-examine the regulations on the safety of large passenger ships in the light of the findings of the casualty investigation, " Koji Sekimizu, secretary-general of the U.N. agency, said in a statement Monday.

WSJ: Cruise Operators See Shares Fall, Defend Safety

The U.N. estimates that 300, 000 Darfuris have died since 2003, but it hasn't bothered to estimate casualty numbers since 2008.

CNN: , Special to