A passenger plane has crashed in Iran near the northeastern city of Gazvin. All 168 people on board are feared killed.

This is screenshot from Iran State TV programme. An Iranian passenger plane crashed near the country's northwestern city of Gazvin and all people on board were feared killed, according to Iran's official IRNA news agency's report.[Xinhua/AFP Photo]

This is screenshot from Iran State TV programme.An Iranian passenger plane crashed near the country's northwestern city of Gazvin and all people on board were feared killed, according to Iran's official IRNA news agency's report.(Xinhua/AFP Photo)

Iran's Press TV says the Russia-made Tupolev passenger plane was travelling from Tehran to the Armenian capital of Yerevan. It says the plane was completely destroyed and its wreckage was in flames.

So far, there has been no official information about the reason caused the accident. The crashed plane belongs to The Caspian Airlines -- a Russian-Iranian joint venture.