London – Iran’s Supreme Leader Ali Khamenei warned against efforts to change the regime’s “behavior”, saying that they would pave the way for toppling the system.

In remarks on Wednesday, Khamenei also said that any attempts to disrupt the presidential election on May 19 would be dealt with harshly.

“The enemy has put on its agenda three short, medium, and long-term goals. Its short-term goal is to tamper the country’s security and create chaos and sedition,” he stated.

He added that the “enemy’s objective in the medium-term” was to weaken economy and make living conditions for Iranians more difficult.

As for the third goal, Khamenei said the prime objective was to eliminate the establishment by provoking a change in “behavior”.

The Iranian spiritual leader was speaking during a graduation ceremony in Tehran for cadets in Iran’s Revolutionary Guard (IRGC).

“The security of the country must be completely preserved during the election,” Khamenei said.

“Anyone who deviates from this path should certainly know that they will be given a slap,” he added.

Khamenei’s comments came two days before the third and last televised presidential debate, which is scheduled for Friday, during which the six candidates, including outgoing President Hassan Rouhani, will present their economic programs.

Khamenei called on electoral candidates to prioritize economic issues and the improvement of living conditions.

He underlined that national sovereignty and Iranian people’s dignity should be the core of electoral campaigns.

The spiritual leader also urged candidates to hold peaceful campaigns away from escalation.

“If people participate with order, behave morally, observe legal and Islamic parameters then this will be a source of honor for the Islamic Republic,” Khamenei said.

“But if they break the law, operate in an immoral way, or speak in a way that will encourage enemies, then the elections can be seen as a loss,” he stated.