Iranians Casting Ballots in Presidential Election

Ahmadinejad leaving shoes to fill

Millions of voters across Iran are casting their ballots in the country's presidential elections.

Although all six candidates are seen as conservatives, one of them, cleric Hassan Rouhani, has been reaching out to the reformists in recent days.

The election will decide a successor to outgoing leader Mahmoud Ahmadinejad.

His eight years in power have been characterised by economic turmoil and Western sanctions against Iran over its controversial nuclear programme.