Iran's Navy warships have foiled pirate attacks on two Iranian-owned oil tankers. The first came under attack earlier this week near Port Sultan Qaboos on Oman's northeastern coast in the Gulf of Oman, the Navy said on Friday. Iranian Navy marines foiled the attack after an exchange of fire. No injuries were reported among the Iranian crews. In another attack, pirates targeted an oil tanker in the Gulf of Aden off the coast of Somalia and were forced to leave the area.