Cruise expert Professor Ross Klein's website refers to a case of an Israeli passenger who went overboard in the Mediterranean Sea during a vacation cruise earlier this month.
According to the Y News Net newspaper in Israel, the passenger was identified as a 43 year old Israeli taxi driver from Hadera who did not return from a leisure cruise to Cyprus he went on three weeks ago.
Police officials said there was a chance that the man had fallen off the ship and drowned.
However, an Egyptian newspaper, al-Masry al-Youm, reported that the man had been shot dead.
The police launched an investigation into the incident after learning of the man's disappearance, taking collecting statements from the ship's crew and passengers and checking security cameras.
The man was reportedly seen in the ship's bar and pool area a day before the ship docked at Haifa Port.
The body was discovered by Egyptian authorities and was transferred to Israel on Friday. It was taken to a forensic institute, where the circumstances of death are being examined.