Passenger plane crashes in Iran mountains

A passenger plane carrying at least 60 people has crashed in a mountainous area of central Iran, media report.

The plane came down in the Zagros mountains near the city of Semirom in Isfahan province while flying between Tehran and the south-western city of Yasuj, reports say.

"All emergency forces are on alert," an emergency services spokesman said.

Bad weather prevented an emergency helicopter reaching the site. There is no official word yet on casualties.

The plane, believed to be an ATR 72-500, was operated by Aseman Airlines, BBC reports.  

Reports say those on board were 60 passengers, two security guards, two flight attendants and the pilot and co-pilot.