Hizbullah chief Hassan Nasrallah has been transferred to Iran to receive medical treatment due to cancer, a Lebanese website associated with the opposition to Hizbullah reported on Monday, according to Israel’s Channel 2 News.

According to the report on the Sawt Beirut International website, Nasrallah’s condition recently deteriorated and he was evacuated to Tehran by an airplane sent on behalf of the Islamic Republic and which took off from the Rafiq al-Hariri International Airport in Beirut.

The report, however, has not been confirmed by any other source and its reliability is unclear.

Channel 2 News reported that while similar reports on Nasrallah’s condition have been published on Lebanese websites in recent days, the websites in question are all run by opponents of the terror group and tend to publish anti-Hizbullah information.

Last week Nasrallah was seen warning Israel not to think that a weakening of Bashar Assad’s regime in Syria means his group is also weaker.

“Those who think Syria is no longer a player and cannot help the resistance (Hizbullah)… and that the resistance is going through a period of weakness and confusion, are mistaken,” he said in a speech to his supporters broadcast on a giant video screen in southern Beirut.

“We have everything we need in Lebanon. We don’t need to transport (arms) from Syria or Iran,” claimed Nasrallah. “I warn the Israelis… that the resistance in Lebanon will not remain silent in the face of any aggression against Lebanon.”

Bulgaria’s recently fingered Hizbullah as being behind the attack in Burgas last July, which killed five Israeli tourists. This has led to renewed calls from Washington and Israel on the 27-nation European Union to designate the group a “terrorist” organization.

However, EU sources have indicated that the organization is unlikely to designate Hizbullah a terrorist organization because of its active “political wing”.