Iran's state TV says the country has successfully test-fired an advanced torpedo system.

The domestically developed torpedo system dubbed "ValFajr,"or dawn in Farsi, has a 220 kilogram (485 pound) warhead that can be used against heavy vessels. It can travel at high speeds and operate in deep or shallow waters.

It was originally unveiled in 2011 and the state TV report said Iran has opened a production line to mass-produce the torpedo.

The report Tuesday did not give the range or say when the test took place.

Iran occasionally announces production of new weapons, which cannot be independently verified.

Since 1992, Iran has begun a military self-sufficiency program that produces weapons from mortars and torpedoes to missiles and jet fighters.