TEHRAN - An Iranian semi-official news agency says the country has sent submarines to the Red Sea in the first such deployment by Iran's navy in distant waters.

The report reflects Iran's efforts to show off its naval power. Iran has long sought to upgrade its air defense systems and navy to portray itself as a regional military superpower, as well as prepare for any possible future attacks against the country .

Tuesday's report by Fars news agency says the submarines will collect data in international waters and identify warships of other countries. It says the submarines accompanied Iranian warships on an anti-piracy route in the Gulf of Aden before they moved into the Red Sea.

Fars gave no details on the number or capabilities of the submarines.