Ali Akbar Hashemi Rafsanjani, Iran's former president, has made his first public appearance since the country's disputed election, in which he backed opposition leader Mir Hossein Mousavi.

During a sermon at Tehran University, Rafsanjani said the country was "in crisis", and that all Iranians were the losers, following the election result.

As Al Jazeera's Roza Ibragimova reports, the speech came as thousands of opposition supporters staged more demonstrations outside.