The firm managing an oil tanker attacked off Oman says two of its crew were killed in the assault. Zodiac Maritime said Friday that the two crew members came from the United Kingdom and Romania. It said it knew of no other injuries among the crew. The attack on Thursday night targeted Liberian-flagged oil tanker Mercer Street just northeast of the Omani island of Masirah. The location is over 300 kilometers (185 miles) southeast of Oman's capital, Muscat. London-based Zodiac Maritime, part of Israeli billionaire Eyal Ofer's Zodiac Group, earlier issued a statement naming the ship as the Liberian-flagged oil tanker Mercer Street. Zodiac Maritime described the ship as being Japanese owned.