Iran has called off a deployment of warships to the Atlantic Ocean, the semi-official Fars news agency said on Sunday, shelving plans for its vessels to approach U.S. maritime borders in response to the U.S. navy's presence in the Gulf. A senior Iranian naval commander was quoted in February as saying that several warships would be sent towards U.S. maritime borders in the Atlantic although the Pentagon said at the time that it was not concerned and that many countries operated in the ocean's international waters. He gave no reason for the decision but said warships' missions were likely to change "depending on the situation in the region", such as a rise in piracy in the Gulf of Aden.