Iran's ex-President Ali Akbar Hashemi Rafsanjani, a dominant figure in the country's politics since the 1980s, has died at the age of 82, media say.
Mr Rafsanjani had suffered a heart attack, the reports said.
He served as president from 1989 to 1997 but lost to Mahmoud Ahmadinejad when he ran again in 2005.
Mr Rafsanjani's current role was head of the Expediency Council, which tries to resolve disputes between parliament and the Guardian Council.
It was the 12-member council, a dominant force in Iran that interprets the constitution, that had disqualified Mr Rafsanjani after he entered the race for the 2013 presidential election.
The state-run Irinn network announced on Sunday that Mr Rafsanjani had "passed away after a lifetime of fighting and constant efforts in line with fulfilling the goals of Islam and the revolution".