June 15, 2009 - 12:37 AMT
Mir Hossein Mousavi officially challenged voting results
The main presidential challenger, former prime minister Mir Hossein Moussavi, who had declared himself winner of the election shortly after polling closed, officially protested voting results and filed a protest to Islamic Revolution Organization.

On the streets of Tehran and other big cities, Ahmadinejad supporters began joyful celebrations while those of Moussavi defiantly claimed that their man had in fact won.

According to official data, ex-Prime Minister Mir Hossein Mousavi, took the second place at the elections gaining 33,75% of votes.

Mahmoud Ahmadinejad was re-elected Iranian president after winning about 62,63% of votes.