An Iranian Navy submarine
Iran's Navy submarines have reportedly been deployed in the Red Sea to conduct maritime surveillance operations and also identify warships of other countries.
The military submarines entered the Red Sea waters on Tuesday and are sailing alongside the warships of Iran's Navy 14th fleet, Fars News Agency reported.
The report added that the fleet entered the Gulf of Aden region in May and has now entered the Red Sea in the continuation of its mission.
The deployment of Iranian military submarines in the Red Sea is the first such operation by Iran's Navy in distant waters.
Iran has deployed warships further afield, as far as the Red Sea, to combat Somali pirates.
Rampant piracy off the Indian Ocean coast of Somalia has made the waters among the most dangerous in terms of pirate activities.
The Gulf of Aden, which links the Indian Ocean with the Suez Canal and the Mediterranean Sea, is the quickest route for more than 20,000 vessels traveling annually between Asia, Europe and the Americas.
However, attacks by heavily armed Somali pirates on speedboats have prompted some of the world's largest shipping firms to switch routes from the Suez Canal and reroute cargo vessels around southern Africa, leading to climbing shipping costs.