The warning, in the form of a resolution signed by members of the Office for Consolidating Unity (OCU) and released Tuesday was addressed to the leader of the Islamic Republic, Ayatollah Ali Khameneh’i, described as the "main responsible" of present volatile, explosive and dangerous situation prevailing in Iran, as seen by the anti-regime demonstrations in Tehran late last night.

This is the third in a series of blunt warnings to Ayatollah Khameneh’i and the conservatives that are monopolising the regime without being elected.

"We are clearly addressing ourselves to all the honourable leaders, telling them that in case they do not make radical changes in their policies and their way of governing, if they do not fill the gap that exist between them and the people, if the crackdown of the nationalist and patriotic opposition and the weakening of the student’s, teacher’s and worker’s unions by the forces of oppression continue, ground for the intervention of foreign powers in the nation’s internal affairs would be paved", the OCU said.

Analysts said Tuesday’s events were the largest anti-regime protest demonstrations in the last six months and could be a rehearsal for what might await the authorities on the fourth anniversary of the students-led mass protests of 9 July 1999.

The students denounces some organs like the Voice and Visage (Radio and Television), the Judiciary, the Council of the Guardians, the Expediency Council and the Revolutionary Guards that are directly controlled by the leader as the "main sources" for the people’s dissatisfaction.

In the view of the signatories, the ball is now in the court of the very person of the leader, whom, they say, is in a situation that requires of him a "historic decision" by choosing between saving the regime or leading it to total collapse.

"If the present path of crackdown on the dissidents, nationalist and patriotic forces, students, political activists, scholars and intellectuals, lawmakers and journalists continue, the end result would be the collapse of the system, no matter of the secret talks with the Americans".

"The same as the leader defends the right of the Iraqi people in self determination and rightly, urges the Americans to bow to the desire of the Iraqi in deciding their destiny, it is therefore logical that we expect him to accept the right of the Iranian people in being the master of its own fate", the resolution said, pointing out that in case the regime’s highest authority take such a decision, the nation can "for sure cross that difficult pass and reach its very place both in the region and in the world".

"In such a critical situation, where reactionary monarchist movements are backed by the neo-conservatives in the United States, Mr. Khatami still enjoys the confidence of the people and can certainly play an important role", the signatories say, calling on him to take a "firmer stand" facing the Council of the Guardians in the one hand and respond to his "historic duty" on the other.

"If not, they add, future elections would witness the repetition of what happened in the cities and rural elections", referring to the humiliating defeat of the reformers in that poll", the resolution noted.

"Although the presence of American forces in Iraq, America’s disdain for international regulations and laws and military attack on Iraq are not acts that one could defend or justify, nevertheless, and as observed in the latest statement of some students associations, the sheer collapse of the brutal regime of dictator and criminal Saddam Hoseyn has provided the Iraqi people and political forces a limited occasion to take in their hands the control of their government in order to reach a real democratic rule", the students went on.