TEHRAN, Iran — Iran displayed a new twin-seat fighter jet Tuesday, saying it’s all Iranian-made and with advanced avionics and fire control systems. The country’s president said it would enhance Tehran’s deterrence capabilities in confronting Washington.

State television showed President Hassan Rouhani briefly sitting in the plane's cockpit inside a hangar just before the inauguration ceremony.

The aircraft is dubbed Kowsar, which refers to a river in paradise and is also the title of a chapter in the Muslim holy book, the Quran.

At the ceremony, Rouhani said Iran's defense program is aimed at deterrence vis-a-vis the United States.

"The enemy should see how expensive an invasion of Iran would be," he said. "Why does not the U.S wage a military attack on us? Because of our power."

Iranian President Hassan Rouhani, left, waves to Kowsar pilots before an inauguration ceremony of the aircraft on Aug. 21, 2018. (Iranian Presidency Office via AP)

The U.S. renewed its sanctions on Iran earlier this month after President Donald Trump in May pulled America out of the nuclear deal between Iran and world powers.

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The report said Iran will also manufacture a single-seat version of the fighter jet. It said the aircraft is capable of flying at an altitude of 45,000 feet and with the speed of Mach 1.2. Mach 1 would be equal to the speed of sound

Iran navy exercise was a message to US on sanctions, says top US commander in Mideast An Iranian naval exercise involving at least 100 small boats in and around the Strait of Hormuz last week was meant as a message to the U.S. for re-imposing economic sanctions on Tehran, the top U.S. commander in the Middle East said Wednesday.

The TV also broadcast footage it said showed the jet in flight.

Iran already has U.S.-made F-4, F-5 as well as F-14 fighter jets and also Russian-made Sukhoi aircraft in service.

The Islamic Republic often announces military achievements that cannot be independently verified.