Border police commander Ebrahim Karimi was quoted by press tv as saying on Wednesday that security clampdowns along the country's border have claimed the lives of 120 rebels and 19 police members in less than a year.
"The past nine months saw an increase in efforts against rebels who threaten national security by engaging in arms dealing and drug trafficking," said the Iranian colonel.
The Islamic Republic has taken new security measures in its border provinces, following terrorist attacks on its eastern and Western borders.
On its eastern borders, the Pakistan-based Jundullah terrorist organization is responsible for orchestrating cross-border attacks on Iranian officials. The terrorists kidnap the officials and "execute" them on camera.
Last June Jundullah terrorists abducted 16 Iranian police officers at a checkpoint in the southeastern city of Saravan in Iran's Sistan-Baluchestan Province. The hostages were reportedly taken to Pakistan where they faced execution in early December.
To the East, meanwhile, Iran faces security threats from the Party of Free Life of Kurdistan (PJAK) - an offshoot of the Kurdistan Workers' Party (PKK), the press tv report continued.
Funded by the US and Israel, PJAK carries out acts of sabotage against the Iranian government in a bid to establish an independent Kurdish state.
At least five Iranian security officials were killed by PJAK militants in the month of October, prompting border authorities to tighten securities on the borderline.
The Mojahedin-e Khalq Organization (MKO), which identifies itself as a Marxist-Islamist guerilla army, is also another anti-Iran terrorist group, which is notorious for plotting a regime change as well as a slew of assassinations inside the Islamic Republic.
The MKO, whose main stronghold is in Iraq, is blacklisted by much of the international community, including the United States.
The MKO is on the European Union's list of terrorist organizations subject to an EU-wide assets freeze, and has been designated by the US government as a foreign terrorist organization. Yet, the MKO puppet leader, Maryam Rajavi, who has residency in France, regularly visits Brussels and despite the ban enjoys full freedom in Europe.
The MKO is behind a slew of assassinations and bombings inside Iran, a number of EU parliamentarians said in a recent letter in which they slammed a British court decision to remove the MKO from the British terror list. The EU officials also added that the group has no public support within Iran because of their role in helping Saddam Hussein in the Iraqi imposed war on Iran (1980-1988).
Many of the MKO members abandoned the terrorist organization while most of those still remaining in the camp are said to be willing to quit but are under pressure and torture not to do so.
A May 2005 Human Rights Watch report accused the MKO of running prison camps in Iraq and committing human rights violations.
According to the Human Rights Watch report, the outlawed group puts defectors under torture and jail terms.
The group, founded in the 1960s, blended elements of Islamism and Stalinism and participated in the overthrow of the US-backed Shah of Iran in 1979. Ahead of the revolution, the MKO conducted attacks and assassinations against both Iranian and Western targets.
Leaders of the group have been fighting to shed its terrorist tag after a series of bloody anti-Western attacks in the 1970s, and nearly 30 years of violent struggle against the Islamic Republic of Iran.
In recent months, high-ranking MKO members have been lobbying governments around the world in the hope of acknowledgement as a legitimate opposition group.
The UK initiative, however, has prompted the European Union to establish relations with the exiled organization now based in Paris. The European Court of First Instance threw its weight behind the MKO in December and annulled its previous decision to freeze its funds.
The group started assassination of the citizens and officials after the revolution in a bid to take control of the newly established Islamic Republic. It killed several of Iran's new leaders in the early years after the revolution, including the then President, Mohammad Ali Rajayee, Prime Minister, Mohammad Javad Bahonar and the Judiciary Chief, Mohammad Hossein Beheshti who were killed in bomb attacks by MKO members in 1981.
The group fled to Iraq in 1986, where it was protected by Saddam Hussein and where it helped the Iraqi dictator suppress Shiite and Kurd uprisings in the country.
The terrorist group joined Saddam's army during the Iraqi imposed war on Iran (1980-1988) and helped Saddam and killed thousands of Iranian civilians and soldiers during the US-backed Iraqi imposed war on Iran.
Since the 2003 US invasion of Iraq, the group, which now adheres to a pro-free-market philosophy, has been strongly backed by neo-conservatives in the United States, who also argue for the MKO to be taken off the US terror list.
The MKO has been in Iraq's Diyala province since the 1980s.