It will be the first time that Tehran, the main regional backer of Syrian President Bashar al-Assad, attends an international summit on the four-year-long war. Other participants, notably the United States, say Assad can play no part in Syria's future
The defence ministry posted pictures of the launch of the missile, named Imad, on its website but no details were given about its maximum range or other capabilities
Ayatollah Ali Khamenei, the highest authority in Iran, told supporters on Saturday that U.S. policies in the region were "180 degrees" opposed to Iran's, in a Tehran speech punctuated by chants of "Death to America" and "Death to Israel"
President Barack Obama faced a bruising battle to sell the deal in Washington as Congressional leaders queued up to denounce it.
Iran and the powers are in the last stretch of talks to reach a final agreement to end a more than 12-year standoff over the country's disputed nuclear program
The so-called partnership agreement would see the countries share and exchange personnel, including coaches and referees, as well cooperate in areas such as sports medicine and professional league management.
The plane was headed to the eastern city of Tabas, the IRNA and Fars news agencies said, when it crashed around 9.18 am (0448 GMT), after leaving Mehrabad airport.
The deal was reached during a visit to Tehran on Tuesday by a senior official of Russia's state atomic energy agency Rosatom, Iran's official IRNA news agency said.
Israel, which has long accused Iran and Syria of providing military aid to Lebanon's Hezbollah and Palestinian militant groups, said the ship was carrying "advanced weaponry," including rockets "capable of striking anywhere in Israel."
Netanyahu was due to meet President Vladimir Putin as envoys from Russia, the United States, China, France, Britain and Germany began a third and possibly conclusive round of talks with Iran in Geneva on easing economic sanctions in return for curbs on Tehran's disputed nuclear program