Ambassador Francis J. Ricciardoni told the Dubai-based al-Arabiya television that the incident was regrettable.
"We are really sorry over this outcome (of the accident). We will open an inquiry into it," Ricciardoni said.
Mohamed Arafa Hamdy, 23, was shot dead, while two other traders were wounded, the sources said.
The incident happened as the Global Patriot waited to cross the Suez Canal from the Red Sea to the Gulf with its cargo of used US military equipment from Dubai, reports said.
Local traders usually sail along the canal, selling cigarettes and merchandise to passing ships.
Last Mod: 26 Mart 2008, 08:54