No permission has been granted to Iranian Reformist groups to hold a Saturday rally in protest at the presidential election results, says Tehran's governor general.

"I hope that this rally will not be held as no legal permission has been granted for this rally," Morteza Tamadon said on Friday.

Defeated presidential candidate Mehdi Karroubi's National Confidence Party (Hezb-e Etemad-e Melli) as well as the Association of Combatant Clerics (Majma'-e Rowhaniyun-e Mobarez) had asked for authorization to hold rallies on Saturday in protest at the June 12 election results.

Iranian authorities have so far refused to authorize rallies, which have been held on a daily basis since the Interior Ministry announced the results only hours after the polls closed.

Saturday's march scheduled to be held from 4 to 7 p.m. (1230 to 1530 GMT). The rally is dubbed 'from Revolution to Freedom' - a reference to the starting point (Enqelab Square) and the finishing point (Azadi Square) of the demonstration.

Incumbent Mahmoud Ahmadinejad was re-elected as the Iranian president on June 12 with almost two-thirds of votes, but his main rival Mir-Hossein Mousavi has rejected the results as fraudulent and demanded a re-run of the election.

Mousavi, Karroubi as well as presidential contender Mohsen Rezaei have filed 646 different counts of violation in the election, said Abbas-Ali Kadkhodayi, the spokesman for the Guardian Council -- the body tasked with supervising the electoral process.

Rallies had also been scheduled for Friday from Haft-e-Tir square to Tehran University, where the Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei led this week's Friday prayers.

However, both Mousavi and Karroubi asked their supporters to cancel Friday's march and attend instead Saturday's scheduled rallies.

Addressing the Friday prayers -- which was reportedly attended by more than a million people -- Ayatollah Khamenei called for an end to 'illegal' street protests aimed at reversing the result of the election.

The Leader, however, maintained that the Guardian Council, the body tasked with overseeing the election, would look into the complaints of the candidates who are unhappy with the election results.

Ayatollah Khamenei said the council would never give in to 'illegal demands', urging all presidential candidates to pursue their complaints through legal channels.

AKM/MMN