New Delhi, May 15 -- India on Thursday denounced an attack that sank an Indian-owned vessel in Omani waters as "unacceptable" and said the targeting of commercial shipping and civilian crew should be avoided amid the West Asia conflict involving the US and Iran. A statement from external affairs ministry spokesperson Randhir Jaiswal didn't provide details of the attack on Haji Ali, a cargo vessel from Gujarat, or specify who was behind the assault. UK-based maritime risk management group Vanguard said the vessel was affected by an explosion believed to have been caused by a drone or missile strike. "The attack on an Indian-flagged ship off the coast of Oman [on Wednesday] is unacceptable and we deplore the fact that commercial shipping and ...