The crash of a military plane in northwestern Iran has killed at least 11 people, including one of the country's top commanders.

Initial reports said 13 people were killed.

The official IRNA news agency says Ahmed Kazemi, commander of ground forces for Iran's Revolutionary Guards, and several other senior officers were killed when the Falcon jet they were traveling in crashed while attempting to land Monday at Orumiyah, near the Turkish border.

It was not clear how many people were on board the plane. Officials say they are investigating.

Just over a month ago, December 6, 108 people died when an Iranian cargo plane crashed into a Tehran apartment building while trying to make an emergency landing. The aircraft was more than 25 years old - a C-130 that Iran had purchased from the United States before the 1979 Islamic revolution.