Iran displayed what it described as a domestically built long-range, surface-to-air missile air defence system, at a time of rising tension with the United States.
Iran shot down a US military surveillance drone in the Gulf with a surface-to-air missile in June. It says the drone was over its territory, but the United States says it was in international airspace.
State television showed President Hassan Rouhani attending an unveiling ceremony for the mobile Bavar-373 system, which Iranian media have described as a competitor to the Russian S-300 missile system.
“With this long-range air defence system, we can detect … targets or planes at more than 300km, lock it at about 250 km, and destroy it at 200 km,” Defence Minister Amir Hatami told state television.