Iran says warship sunk by US was unarmed and on ceremonial mission
Iran says the U.S. torpedoed and sank an unarmed Iranian warship off Sri Lanka, which was on a ceremonial mission. Tehran warns that attacking an unarmed vessel cannot go unpunished, noting the strike occurred two days after the incident, according to AdaDerana. source http://www.adaderana.lk/news.php?nid=119355