IRAN VOWS REPRISAL FOR U.S. ATTACK ON OIL RIG Iran said several people were injured in Monday's U.S. Attack on an Iranian offshore oil site and vowed retaliation, Tehran radio reported. It quoted President Ali Khamenei as saying, "We will definitely retaliate and will not leave this American move unanswered." A broadcast monitored in Nicosia said several civilian personnel on the Rashadat oil platforms in the Gulf east of Qatar were injured when U.S. Warships bombarded them this afternoon. It described damage as "severe." Washington said four American frigates shelled and destroyed two Iranian platforms at the Rashadat (formerly Rostam) field at 1100 GMT on Monday in response to Friday's missile attack on a U.S.-flag ship in Kuwaiti waters. The U.S. Said Iranians used the platforms for military pruposes and had fired on an American helicopter from the rigs earlier this month. Khamenei denied that the platforms had military gear or personnel and said the U.S. Attack lacked miltary value. "With this move Mr. Reagan has committed a big mistake and has definitely increased his problems...