Election officials: Ahmadinejad leading as final result nears pt.3

An "unprecedented" voter turnout at the polls Friday was also expected to boost Moussavi's chances of winning the presidency.

Iran's Interior Minister Seyed Sadeq Mahsouli said 70 percent of 46 million eligible voters had gone to the polls Friday, according to Fars, another semi-official news agency.

Election officials: Ahmadinejad leading as final result nears pt.2

Both candidates claimed victory. Moussavi's camp accused the Iranian establishment of manipulating the vote. Video Watch why each side is claiming victory »

Voting was supposed to end after 10 hours, but because of the massive turnout, officials initially said polling stations would remain open until everyone in line had a chance to vote. However, Moussavi alleged that doors were being closed with people still waiting outside.

Election officials: Ahmadinejad leading as final result nears

With 78 percent of ballot boxes counted, Ahmedinejad had 64.9 percent of the vote while his chief rival Mir Hossein Moussavi had 32 percent, election officials said.

Analysts expected Moussavi, widely regarded as a reformist, to do well as his campaign caught fire in recent days, triggering massive street rallies in Tehran.

An "unprecedented" voter turnout at the polls Friday was also expected to boost Moussavi's chances of winning the presidency.

Iran's Interior Minister Seyed Sadeq Mahsouli said 70 percent of 46 million eligible voters had gone to the polls Friday, according to Fars, another semi-official news agency.