Supreme Leader Ayatollah Ali Khamenei said last week Iran should increase its military capability and readiness to ward off enemies, in a meeting with Iranian navy commanders
Iran's navy on Saturday launched a domestically made destroyer, which state media said has radar-evading stealth properties, as tensions rise with arch-enemy, the United States.
In a ceremony carried live on state television, the Sahand destroyer - which can sustain voyages lasting five months without resupply - joined Iran's regular navy at a base in Bandar Abbas on the Gulf.
The Sahand has a flight deck for helicopters, torpedo launchers, anti-aircraft and anti-ship guns, surface-to-surface and surface-to-air missiles and electronic warfare capabilities, state television reported.
US President Donald Trump pulled out of an international agreement on Iran's nuclear program in May and reimposed sanctions on Tehran. He said the deal was flawed because it did not include curbs on Iran's development of ballistic missiles or its support for proxies in Syria, Yemen, Lebanon and Iraq.
The United States has said its goal is to reduce Iran's oil exports to zero. Senior Iranian officials have said that if Iran is not allowed to export then no other countries will be allowed to export oil through the Strait of Hormuz at the mouth of the Gulf.
"This vessel is the result of daring and creative design relying on the local technical knowledge of the Iranian Navy... and has been built with stealth capabilities," Rear-Admiral Alireza Sheikhi, head of the navy shipyards that built the destroyer, told the state news agency IRNA.
Iran launched its first locally made destroyer in 2010 as part of a programme to revamp its navy equipment which dates from before the 1979 Islamic revolution and is mostly US-made.
Iran has developed a large domestic arms industry in the face of international sanctions and embargoes that have barred it from importing many weapons.
Separately, a naval commander said Sahand may be among warships that Iran plans to send on a mission to Venezuela soon.
"Among our plans in the near future is to send two or three vessels with special helicopters to Venezuela in South America on a mission that could last five months," Iran's deputy navy commander, Rear-Admiral Touraj Hassani Moqaddam, told the semi-official news agency Mehr.
Supreme Leader Ayatollah Ali Khamenei said last week Iran should increase its military capability and readiness to ward off enemies, in a meeting with Iranian navy commanders.
Iran's navy has extended its reach in recent years, launching vessels in the Indian Ocean and the Gulf of Aden to protect Iranian ships from Somali pirates operating in the area.
The chief of staff of the Iranian armed forces said in 2016 that Iran may seek to set up naval bases in Yemen or Syria in the future, raising the prospect of distant footholds perhaps being more valuable militarily to Tehran than nuclear technology.