Russia urges Iran to find a “constitutional” resolution to its post-election unrest after the country's Islamic Revolution Guards Corps (IRGC) said it would deal with new protests.

“The divergences that have appeared following the election must be resolved in strict conformity with the constitution and the law,” said a Russian Foreign Ministry statement released Monday.

Russian President Dmitry Medvedev has congratulated his counterpart Mahmoud Ahmadinejad on his re-election for a second-term with almost two-third of the votes.

The Russian statement came after the IRGC warned rioters of harsh and “revolutionary” response on Monday.

"We warn the main elements behind the riots and their deceived supporters to … halt their acts of sabotage and end their riots or be prepared for a decisive and revolutionary confrontation with the Guards, Basij and other security and disciplinary forces," the IRGC said in a statement.

Following the victory of President Ahmadinejad on June 12, the country has become the scene of illegal rallies with defeated presidential hopefuls Mir-Hossein Mousavi and Mehdi Karroubi rejecting the result as fraudulent and demanding a re-run.

On Saturday, acting Police Chief Brigadier General Ahmad-Reza Radan warned against any illegal gatherings, saying that the police would firmly deal with any illegal rallies and those who plan such activities will be prosecuted.

MD/HGH