This is from the BBC
Most of the passengers on board the plane were journalists and photographers from Iranian news agencies on their way to cover military manoeuvres on the southern coast. Nearly 40 employees of state-run television died.
The building remained standing but is a scorched shell.
Officials said several children, at home because schools were closed because of a smog alert in the capital, were among those who died in the apartment block.
"Most of the victims on the ground are women and children who were at home," Lieutenant Nasser Sedigh-Nia, who witnessed the crash, told AFP news agency.
An interior ministry spokesman said some of those killed on the ground had been in their cars, whose burnt-out shells littered the crash site.
Scores of people were taken to hospitals suffering from burns and the effects of smoke.
Scuffles broke out as police cordoned off the crash site, trying to keep hundreds of anxious residents from pushing past them.
And journalists at the site were beaten and had their tapes confiscated by the security forces.